Start by warming the oil in a large skillet (mine is 3 quarts) over medium heat. Add the onion and cook for 3 minutes, then add the spices (cumin to oregano) and stir together. Continue to cook for another 2-3 minutes. Next add the red pepper and the green chilies and stir together. Cook for another 2-3 minutes then add the drained and rinsed beans, corn, salsa, and rice. Stir everything until well-combined. Turn the oven to broil then top the mixture in the skillet with the shredded cheese. Place the skillet in the oven and cook for about 3-4 minutes until the cheese is golden and bubbly on top. Serve warm with diced green onions, cilantro, and/or avocado.