Preheat oven to 350 degrees.
Brown the ground beef in a large skillet over medium heat.
Add the quartered potatoes to the ground beef and cook, stirring occasionally for 15 minutes.
Stir the chopped onions and bell pepper into the skillet along with the salt and pepper.
Add the cannellinni beans, corn, tomatoes (with their liquid), cumin, chili powder, garlic powder, smoked paprika, and dried oregano. Stir well to combine and heat through.
Spoon the mixture into a 9" x 13" baking dish that has been sprayed with cooking spray.
Top the casserole with the shredded cheddar cheese and bake in a preheated oven for 30 minutes.
Serve and enjoy!