Monterey Chicken Spaghetti: Cheesy Casserole Bake for Easy Weeknight Dinners

When you need a comforting meal that comes together quickly and satisfies the whole family, this Monterey Chicken Spaghetti is your answer. This cheesy pasta bake combines tender chicken, savory flavors, and melted cheese in a one-dish wonder that’s perfect for busy weeknights. It’s a crowd-pleasing casserole that delivers restaurant-quality flavor with minimal effort.

Ingredients

• 12 oz spaghetti pasta
• 2 cups cooked chicken, shredded or diced
• 1 cup diced peppers (red and green bell peppers)
• 1 cup diced onions
• 2 cloves garlic, minced
• 1 cup shredded Monterey Jack cheese
• 1 cup shredded cheddar cheese
• 1 cup beef smoked strips (as alternative)
• 1 cup ranch dressing
• 1 cup BBQ sauce
• 1 cup chicken broth
• 1/2 cup sour cream
• 2 tbsp olive oil
• 1 tsp paprika
• Salt and pepper to taste

Step-by-Step Instructions

Step 1: Preheat your oven to 375°F (190°C). Cook the spaghetti according to package directions until al dente, then drain and set aside.

Step 2: In a large skillet, heat olive oil over medium heat. Sauté onions and peppers until softened, about 5 minutes. Add garlic and cook for another minute until fragrant.

Step 3: Add the cooked chicken, beef smoked strips, ranch dressing, BBQ sauce, chicken broth, and seasonings. Stir to combine and heat through.

Step 4: Combine the cooked spaghetti with the chicken mixture and sour cream. Mix well until everything is evenly coated.

Step 5: Transfer the mixture to a greased 9×13 inch baking dish. Top with both shredded cheeses and sprinkle with paprika.

Step 6: Bake for 20-25 minutes until the cheese is melted and bubbly. Broil for the last 2-3 minutes for a golden brown top if desired.

Expert Tips

Perfect Cheese Blend: Use a combination of Monterey Jack and cheddar for the best flavor and meltability. The Monterey Jack provides creaminess while cheddar adds sharpness.

Make-Ahead Magic: This casserole can be assembled up to a day in advance and refrigerated. Just add an extra 5-10 minutes to the baking time when cooking from cold.

Customize Your Spice: For a little heat, add diced jalapeños or a teaspoon of chili powder to the sauce mixture. If you’re looking for more creamy pasta options, try our Cowboy Butter Chicken Pasta for another family favorite.

Perfect Pairings: Serve this comforting dish with a simple green salad or roasted vegetables. For another great one-pan meal that saves on cleanup, check out our Easy Instant Pot Chicken and Rice recipe.

Frequently Asked Questions

Can I use different pasta shapes? Absolutely! While spaghetti is traditional, penne, rotini, or bowtie pasta work beautifully in this casserole.

How do I store leftovers? Store in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or microwave until warmed through.

Can I make this dish vegetarian? Yes! Simply omit the chicken and add more vegetables like mushrooms and zucchini. For more vegetarian-friendly dinner ideas, our Creamy Salmon Spinach Pasta offers great inspiration.

What’s the best way to cook chicken for this recipe? You can use rotisserie chicken for convenience, or bake chicken breasts seasoned with the same spices used in the casserole.

Can I freeze this casserole? Yes, it freezes well for up to 3 months. Thaw overnight in the refrigerator before reheating. For more freezer-friendly meal ideas, explore our collection of easy one-pan recipes that are perfect for meal prep.

Monterey Chicken Spaghetti: Cheesy Casserole Bake for Easy Weeknight Dinners

This comforting Monterey Chicken Spaghetti is a cheesy pasta bake that combines tender chicken, savory flavors, and melted cheese for an easy weeknight dinner. It’s a one-dish wonder that delivers restaurant-quality flavor with minimal effort and satisfies the whole family.

Print Recipe Pin Recipe

Prep Time 20 minutes mins

Cook Time 30 minutes mins

Total Time 50 minutes mins

Servings: 6 servings

Calories: 480

Ingredients Method Notes

Ingredients

  

Ingredients

• 12 oz spaghetti pasta
• 2 cups cooked chicken, shredded or diced
• 1 cup diced peppers (red and green bell peppers)
• 1 cup diced onions
• 2 cloves garlic, minced
• 1 cup shredded Monterey Jack cheese
• 1 cup shredded cheddar cheese
• 1 cup beef smoked strips (as alternative)
• 1 cup ranch dressing
• 1 cup BBQ sauce
• 1 cup chicken broth
• 1/2 cup sour cream
• 2 tbsp olive oil
• 1 tsp paprika
• Salt and pepper to taste

Method

 

Instructions

1. Preheat your oven to 375°F (190°C). Cook the spaghetti according to package directions until al dente, then drain and set aside.
2. In a large skillet, heat olive oil over medium heat. Sauté onions and peppers until softened, about 5 minutes. Add garlic and cook for another minute until fragrant.
3. Add the cooked chicken, beef smoked strips, ranch dressing, BBQ sauce, chicken broth, and seasonings. Stir to combine and heat through.
4. Combine the cooked spaghetti with the chicken mixture and sour cream. Mix well until everything is evenly coated.
5. Transfer the mixture to a greased 9×13 inch baking dish. Top with both shredded cheeses and sprinkle with paprika.
6. Bake for 20-25 minutes until the cheese is melted and bubbly. Broil for the last 2-3 minutes for a golden brown top if desired.

Notes

Use a combination of Monterey Jack and cheddar for the best flavor and meltability. Can be prepared up to a day in advance and refrigerated – add extra 5-10 minutes baking time when cooking from cold.