Looking for a filling and healthy dinner? Baked spaghetti squash casserole recipes to the rescue! This buffalo chicken spaghetti squash casserole is a chicken dinner winner for a few reasons: It’s delicious, satisfying, and packed with nutritious ingredients. And perhaps most important, it’s buffalo chicken! If you like the flavors of Instant Pot buffalo chicken dip or homestyle dishes like cheesy yellow squash casserole, you’ll love this one too. And don’t worry, you can make it as spicy or as mild as you like!
Ingredients & Substitutions
This section explains how to choose the best ingredients for casserole spaghetti squash, what each one does in the recipe, and substitution options. For measurements, see the recipe card below.
Spaghetti Squash – Find a medium spaghetti squash, about 4-6 pounds, for this recipe.Blue Cheese Dressing – You can get a store-bought version or make homemade blue cheese dressing for extra flavor. If blue cheese isn’t your thing, you can easily swap in ranch dressing as well.Buffalo Sauce – Any brand and spice level will do. I used this one for my buffalo chicken casserole.Cream Cheese – I used a full-fat variety, but any kind should work — including non-dairy ones.Shredded Chicken – I prefer using my Instant Pot shredded chicken for best texture, but you can also cook and cube air fryer chicken breast or baked chicken breast for this recipe. Alternatively, you can use ground turkey or ground beef. Before using it in this dish, simply brown the meat on the stove top over medium-high heat, with olive oil, sea salt, and black pepper to taste.Cheddar Cheese – Use a pre-shredded variety, or shred your own. You can also swap half of the cheese for mozzarella cheese.Green Onions – Optional, for a zippy garnish.
How To Make Spaghetti Squash Casserole
This section shows how to make a casserole with spaghetti squash, with step-by-step photos and details about the technique, to help you visualize it. For full instructions, including amounts and temperatures, see the recipe card below.
Storage Instructions
Store: Keep spaghetti squash casseroles covered in the fridge for 4-5 days.Meal prep: Prep one of two ways. You can make squash and remove strands, make blue cheese dressing, and prepare shredded chicken — store each separately, then assemble and bake right before serving. Alternatively, you can assemble everything in a casserole dish, top with foil, and refrigerate until ready to bake.Reheat: Heat in a 350 degree F oven, or gently in the microwave, until hot and bubbly.Freeze: You can freeze this recipe for spaghetti squash casserole! Let it cool completely, wrap in foil, and freeze for 2-3 months. Bake from frozen for 30-40 minutes, or thaw first in the fridge and bake for 15-20 minutes until hot.
More Spaghetti Squash Casserole Recipes
Lasagna Style – Similar to spaghetti squash lasagna boats! Instead of using chicken, brown ground beef in a skillet with a teaspoon of Italian seasoning mix, then mix with 1/2 cup of your favorite pasta sauce or marinara. In a separate bowl, mix 2/3 cup ricotta, 1/3 cup parmesan cheese, 1 tablespoon olive oil, and salt to taste. Add spaghetti squash strands to the dish, followed by cheese, then meat sauce, then top with 2/3 cup shredded mozzarella cheese and bake.Three Cheese – Swap cream cheese with a 15 ounce container of ricotta cheese, 1/2 cup of provolone or mozzarella cheese, and 1/4 cup shredded parmesan cheese. Swap blue cheese dressing and buffalo sauce with a tomato or marinara sauce.Classic Spaghetti – Prepare meat and tomato sauce in the lasagna style squash above, but mix together with squash strands instead of layering. Sprinkle 2/3 cup mozzarella cheese over the top before baking.Chicken Alfredo – Omit cream cheese and swap cheddar cheese with mozzarella. Substitute the blue cheese dressing and buffalo sauce with a batch of alfredo sauce. Mix and bake as usual.
If you want your chicken spaghetti squash casserole to have more kick, add two additional tablespoons of buffalo sauce to the mixture. Share your recipe picture by tagging @wholesomeyum and hashtag it #wholesomeyum on Instagram, or in our Facebook support group, too – I’d love to see it!
