Creating Cheesy Taco Pasta Bake is simple if you follow these steps:

1. Preheat the Oven: Begin by preheating your oven to 350°F (175°C).
2. Cook the Pasta: In a large pot, bring salted water to a boil. Add the elbow macaroni and cook until al dente. Drain and set aside.
3. Brown the Meat: In a large skillet, heat olive oil over medium heat. Add the diced onion and sauté until translucent. Add the ground beef or turkey, breaking it up with a spatula. Cook until browned.
4. Add Seasoning: Sprinkle the taco seasoning over the meat mixture, and stir until evenly coated. Add the diced tomatoes (with juice), corn, and chicken broth. Stir well to combine.
5. Combine Ingredients: Add the cooked pasta to the skillet, and stir in the sour cream or Greek yogurt and 1 cup of shredded cheese. Mix until everything is well combined.
6. Transfer to Baking Dish: Pour the pasta mixture into a greased 9×13 inch baking dish and spread evenly.
7. Top with Cheese: Sprinkle the remaining cheese on top of the pasta mixture.
8. Bake: Place the baking dish in the oven and bake for 30-35 minutes, or until the cheese is melted and bubbly.
9. Cool Slightly: Remove the baking dish from the oven and allow it to cool for about 5 minutes before serving.

These straightforward steps will guide you to create this incredible dish effortlessly.