Creating Taco Pasta Casserole is straightforward. Follow these easy steps for a delicious outcome:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Cook Meat: In a large skillet, heat olive oil over medium heat. Add diced onions and garlic. Sauté until onions are translucent.
3. Brown the Meat: Add the ground beef or turkey to the skillet. Cook until browned, ensuring it’s fully cooked through. Drain any excess fat.
4. Mix Ingredients: Stir in the taco seasoning, black beans, corn, and diced tomatoes. Mix well to combine.
5. Add Pasta: Add uncooked pasta and broth to the skillet. Stir until all ingredients are well mixed.
6. Simmer: Bring the mixture to a simmer. Cook for about 5–7 minutes, allowing the pasta to absorb some liquid and slightly soften.
7. Transfer to Baking Dish: Pour the mixture into a greased casserole dish. Spread evenly.
8. Cheese It Up: Sprinkle the shredded cheddar and mozzarella cheese evenly on top of the casserole.
9. Bake: Place the casserole in the preheated oven and bake for 20-25 minutes or until the cheese is bubbly and golden brown.
10. Let It Rest: Remove the casserole from the oven and let it sit for 5 minutes before serving. This allows the layers to set.