Chili Spaghetti Squash Casserole

About This Recipe

All of your favorite chili ingredients combined into one delicious and comforting baked spaghetti squash casserole. This healthy casserole recipe is made from simple ingredients, packed with protein and veggies, and is great for meal prep. Gluten-free and low-carb.

Ingredients

• 1 medium-large spaghetti squash ((about 1050 grams or 6.75 cups cooked spaghetti squash))
• 1/2 tablespoon olive oil
• 1 cup diced onion ((120 grams))
• 2 pounds lean ground beef ((I suggest 93/7 or leaner))
• 4 cups diced bell peppers ((500 grams/2 large - I used red and green))
• 1 tablespoon chili powder
• 1 tablespoon cumin
• 2 teaspoons paprika
• 1/2 teaspoon red pepper flakes
• 1 can (14.5 ounces) fire-roasted tomatoes, liquid slightly drained
• 1 can (15.5 ounces) black beans, rinsed and drained
• 2 large eggs, whisked
• 1 cup shredded cheddar cheese ((3 ounces))
• optional toppings: cilantro, avocado, greek yogurt, sour cream, hot sauce...

Instructions

1. Preheat oven to 375 degrees Fahrenheit. Grease a large casserole/baking dish (it needs to be really large - I used a 13x9).
2. Cook your spaghetti squash by your preferred method (oven, instant pot, or microwave). See the notes below for each method. You can also do this in advance and store it in the fridge to save time.
3. Make your beef mixture. When you have about 15 minutes left on the spaghetti squash, start to make the beef and veggie mixture. Heat up a large cast-iron or skillet and add oil. Add the onions and some salt and pepper and saute for 3-4 minutes. Add the beef, break it up with your spatula, and saute for 4-5 more minutes until mostly browned. Next, add the peppers and saute for another 3-4 more minutes until softened. Stir in the spices.
4. Assemble casserole. When the spaghetti squash is done, thread it with a fork and add it to your greased 13x9 baking dish. Next, add the beef mixture, making sure to leave behind the grease (as much as possible). Then add your black beans, tomatoes, and eggs. Mix well to combine and evenly distribute all the ingredients. If it is easier, you can mix everything up in a large bowl, but I like to save an extra dish to wash. Top with cheddar cheese.
5. Bake. Place in the oven and bake for 40-45 minutes until the mixture is set and crispy around the edges. Let cool for 5 minutes to set and cut into 8 equal-sized pieces.
6. Enjoy! Top with optional toppings and enjoy!