Preheat oven to 325°F (160°C).

Boil flat noodles for 5 minutes and drain.

Chop onion and bell pepper.

In a skillet, cook chopped onion and bell pepper in 2 tablespoons of bacon grease until tender and browned.

Add ground beef to the skillet and cook until it loses its red color.

Turn off the heat.

Season with salt and pepper to taste.

Add cream-style corn and tomato paste to the skillet.

Mix well to combine all ingredients.

Add grated cheese to the mixture and stir in the cooked noodles.

Save some cheese to sprinkle on top of the casserole.

Pour the mixture into a casserole dish.

Sprinkle the remaining cheese on top.

Bake in the preheated oven for about 45 minutes, or until golden brown and bubbly.