This creamy baked pasta dish combines classic spaghetti with bold Tex Mex flavors for a satisfying family meal. It is a convenient casserole that utilizes pantry staples to create a rich and cheesy dinner.

List of ingredients
- 8 oz thin spaghetti – boil until slightly underdone for best results.
- 2 cups cooked chicken – chopped into bite-sized pieces; rotisserie or grilled chicken works well.
- 1 can cream of mushroom soup – provides a savory, earthy base for the sauce.
- 1 can cream of chicken soup – adds a rich poultry flavor to the mixture.
- 1 10 oz can diced tomatoes and green chiles – keep the liquid to maintain sauce moisture.
- 1 cup sour cream or Greek yogurt – adds creaminess and a slight tang.
- 1 cup shredded cheddar or Mexican blend cheese – used for the melty golden topping.
step-by-step instructions
- Preheat Oven: Set your oven to 350 degrees Fahrenheit to ensure it is fully heated before baking.
- Cook Pasta: Boil the thin spaghetti according to the package directions, then drain it thoroughly in a colander.
- Combine Base Ingredients: In a large mixing bowl, stir together the chopped cooked chicken, cream of mushroom soup, cream of chicken soup, undrained diced tomatoes with chiles, and sour cream until the mixture is smooth.
- Mix in Pasta: Add the cooked and drained spaghetti to the bowl, stirring gently until the noodles are evenly coated in the sauce.
- Prepare Baking Dish: Transfer the entire mixture into a 9×13 inch baking dish, spreading it evenly to the edges.
- Bake Covered: Cover the dish tightly with aluminum foil and bake for 30 minutes, or until the casserole is hot and bubbling.
- Add Cheese: Remove the foil, sprinkle the shredded cheese evenly over the top, and return the dish to the oven uncovered until the cheese is completely melted.
Customizing the Flavor Profile
Adding Diced Jalapeños for Heat
For those who prefer a spicier meal, stir in a small can of diced jalapeños along with the tomatoes. You can keep the brine for extra tang or drain them for a cleaner heat. Ensure they are distributed evenly during the mixing phase to avoid spice clumps.
Increasing the Cheese Content
To create an even richer dish, stir half a cup of shredded cheese directly into the pasta mixture before transferring it to the baking dish. Then, proceed with the topping as directed. This results in pockets of melted cheese throughout the entire casserole.
Substituting Chicken with Black Beans
If you prefer a meatless version or have no chicken on hand, replace the chicken with two cups of drained and rinsed canned black beans. This provides a hearty texture and adds extra protein and fiber. The flavor profile remains consistent with the Mexican theme.
Choosing the Best Ingredients
Selecting the Right Type of Pasta
Thin spaghetti is recommended because it blends well with the thick cream sauce without feeling too heavy. However, you can use linguine or fettuccine if you prefer a wider noodle. Avoid using overly thick pastas that may require more liquid to cook through during the baking stage.
Utilizing Rotisserie Chicken for Efficiency
Using a store-bought rotisserie chicken is the fastest way to prepare this meal. Simply remove the skin and bones, then chop the breast and thigh meat into small cubes. This adds a deep, roasted flavor to the casserole with minimal effort.
Greek Yogurt as a Sour Cream Substitute
Plain Greek yogurt serves as an excellent substitute for sour cream, offering a similar creamy consistency with added protein. It provides a slightly sharper tang that cuts through the richness of the cream soups. Ensure the yogurt is full-fat or 2% for the best texture.
The Role of Undrained Tomatoes
It is important not to drain the diced tomatoes and green chiles. The canning liquid contains essential seasoning and moisture that prevents the pasta from drying out in the oven. This liquid emulsifies with the cream soups to create a cohesive sauce.
Professional Baking Techniques
Preventing the Pasta from Overcooking
Since the pasta bakes for 30 minutes, boil it for 1 to 2 minutes less than the package directions. This is known as cooking the pasta ‘al dente.’ This technique ensures the noodles maintain their structure and do not become mushy after baking.
Ensuring an Even Bake
When transferring the mixture to the 9×13 dish, use a spatula to press the pasta down firmly. This eliminates large air pockets and ensures that the heat distributes evenly throughout the casserole. This prevents the edges from overcooking while the center remains cold.
Achieving the Perfect Cheese Melt
For the best cheese topping, use freshly grated cheese rather than pre-shredded varieties. Pre-shredded cheese is coated in potato starch to prevent clumping, which can hinder a smooth melt. Freshly grated cheddar melts more fluidly and browns more evenly.
Managing the Foil Cover
Covering the dish with foil is critical for trapping steam and heating the center of the casserole. To prevent the cheese or sauce from sticking to the foil, you can lightly spray the underside of the foil with non-stick cooking spray. Remove the foil only for the final melting stage.
Serving and Pairing Suggestions
Fresh Topping Ideas
Garnish the finished dish with freshly chopped cilantro or sliced green onions to add a pop of color and freshness. A dollop of extra sour cream or a slice of avocado on each serving adds a creamy contrast. These additions brighten the heavy flavors of the cream sauce.
Side Dish Pairings
Pair this casserole with a light side to balance the richness of the cheese and cream. A crisp green salad with a lime-vinaigrette or a side of steamed corn on the cob works perfectly. Sliced fresh cucumbers with vinegar also provide a refreshing palate cleanser.
Garnishing for Presentation
To make the dish look professional, sprinkle a small amount of paprika or chili powder over the melted cheese. This creates a vibrant red contrast against the golden cheese. Serve directly from the baking dish for a rustic, family-style presentation.
Storage and Reheating Guidelines
Refrigeration Process
Store any leftovers in an airtight container in the refrigerator for up to four days. Ensure the casserole has cooled slightly before sealing the lid to prevent excessive condensation. This helps maintain the texture of the pasta and prevents it from becoming soggy.
Microwave Reheating Methods
When reheating individual portions in the microwave, add a teaspoon of water or milk to the pasta before heating. This introduces moisture back into the sauce, which may have thickened during refrigeration. Heat in short intervals, stirring in between, until warm.
Oven Reheating for Best Texture
For larger quantities, reheat the leftovers in a hot oven at 325 degrees Fahrenheit. Cover the dish with foil to prevent the top from burning while the center heats through. This method preserves the consistency of the cheese and the firmness of the noodles better than a microwave.
Preparation and Planning
Assembling the Casserole in Advance
You can prepare the entire mixture and assemble it in the baking dish a day before you plan to serve it. Keep the dish covered in the refrigerator, but do not add the cheese topping until just before baking. Increase the initial baking time by 5 to 10 minutes if the dish is cold from the fridge.
Freezing Instructions
This casserole can be frozen for later use, provided you assemble it before baking. Wrap the baking dish tightly with plastic wrap and then aluminum foil to prevent freezer burn. Thaw the dish completely in the refrigerator overnight before following the baking instructions.
Meal Prep Component Logic
To speed up the process on dinner night, pre-chop the chicken and grate the cheese ahead of time. You can also mix the cream soups, tomatoes, and sour cream in a jar and store it as a ‘sauce base.’ This reduces the final assembly time to just boiling the pasta and stirring.
Common Cooking Solutions
Dealing with a Watery Sauce
If the sauce appears too thin after mixing, you can stir in an extra tablespoon of cream cheese or a handful of shredded cheese. These ingredients act as thickeners that bind the liquid. Avoid adding flour, as it can create a raw taste in a baked dish.
Fixing Dry Pasta
If the pasta seems too dry before it goes into the oven, stir in a splash of milk or vegetable broth. This provides the necessary hydration for the noodles to absorb during the baking process. A small amount of liquid goes a long way in achieving a creamy consistency.
Preventing Burnt Cheese
If your oven runs hot, keep a close eye on the cheese during the final uncovered stage. If the cheese browns too quickly before melting, lower the oven temperature by 25 degrees. You can also move the oven rack to a lower position to reduce direct heat from the top element.
Frequently Asked Questions
Can I use a different size baking dish?
Yes, you can use a deeper 9×9 inch dish, but you will need to increase the baking time. A deeper dish means the heat takes longer to reach the center, so check for bubbling throughout. Ensure there is enough room for the cheese to spread without overflowing.
Can I use whole wheat spaghetti?
Whole wheat spaghetti can be used, though it has a nuttier flavor and a firmer texture. Because whole wheat pasta absorbs more liquid, you may want to add an extra two tablespoons of milk or broth to the sauce. Be careful not to overcook it, as whole wheat can become grainy.
How do I make this dish creamier?
For maximum creaminess, replace the sour cream with a mixture of cream cheese and heavy cream. This increases the fat content and creates a velvet-like texture. Stir the cream cheese in while it is softened to avoid lumps in the sauce.
Is it possible to add more vegetables?
Absolutely. Stir in diced bell peppers, corn kernels, or frozen peas during the mixing stage. These additions add nutritional value and texture without altering the core flavor profile. Ensure any watery vegetables are drained well before adding them to the mix.
Print
Cheesy Mexican Chicken Spaghetti
- Total Time: 40 minutes
- Yield: 6 servings 1x
- Diet: General
Description
Cheesy Mexican Chicken Spaghetti is a creamy pasta casserole with a Tex Mex spin. Pasta gets tossed with tender chicken, diced tomatoes, chiles, and creamy sauce before being baked to melty cheesy perfection for a dinner everyone will love.
Ingredients
- 8 oz thin spaghetti
- 2 cups cooked chicken, chopped
- 1 can cream of mushroom soup
- 1 can cream of chicken soup
- 1 10 oz can diced tomatoes and green chiles, undrained
- 1 cup sour cream or Greek yogurt
- 1 cup shredded cheddar or Mexican blend cheese
Instructions
- Step 1: Preheat oven to 350 degrees.
- Step 2: Boil pasta according to package directions. Drain.
- Step 3: In a large bowl mix together the chicken, soups, tomatoes, and sour cream, stirring until evenly combined.
- Step 4: Add in the cooked and drained pasta, stirring until evenly combined.
- Step 5: Transfer to a 9×13 baking dish.
- Step 6: Cover with foil and bake for 30 minutes, or until hot and bubbly.
- Step 7: Sprinkle with cheese and return to the oven, uncovered, until melted.
Notes
Want it spicier? Add a can of diced jalapenos. You could add even more cheese, stirring in a half a cup or so to the mixture before baking and then topping it with cheese as directed towards the end of the cook time. Don’t have chicken to use up? Skip the chicken and add drained canned black beans instead.
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Category: Dinner
- Method: Baking
- Cuisine: American, Mexican
Nutrition
- Serving Size: 1 serving
- Calories: 424 kcal
- Sugar: 4 g
- Sodium: 527 mg
- Fat: 20 g
- Saturated Fat: 9 g
- Unsaturated Fat: 11 g
- Trans Fat: 0 g
- Carbohydrates: 36 g
- Fiber: 2 g
- Protein: 24 g
- Cholesterol: 80 mg