Cook Ground Beef: In a large skillet over medium heat, cook the ground beef until browned and no longer pink. Drain any excess grease.
Add Onion and Garlic: To the cooked ground beef, add the chopped onion and minced garlic. Cook for another 3-4 minutes until the onion is softened and translucent.
Seasoning: Season the beef mixture with salt, pepper, and Italian seasoning. Stir well to combine.
Add Vegetables: Leave one can of corn "undrained". Drain the other can of corn and the can of peas. Add the corn and peas to the skillet with the beef mixture. Stir to combine everything evenly.
Combine Pasta and Beef Mixture: In a large mixing bowl, combine the cooked rotini pasta with the beef and vegetable mixture.
Add Tomato Soup and Sauce: Pour in the tomato soup and tomato sauce. Mix everything together until the pasta and vegetables are coated evenly.
Transfer to Baking Dish: Grease a 9x13-inch baking dish. Transfer the pasta mixture to the baking dish, spreading it out evenly.
Top with Cheese: Sprinkle the shredded cheddar cheese evenly over the top of the pasta mixture.
Bake: Place the baking dish in the preheated oven and bake for 25-30 minutes, or until the cheese is melted and bubbly.
Serve: Remove from the oven and let it cool for a few minutes before serving. This hotdish is delicious on its own or served with a side of crusty bread.