Slice bell peppers and onion into long thin slices.
In a large skillet add 2 tablespoons of your fat of choice, over medium to medium-high heat.
Add your sliced veggies to the hot skillet.
While the veggies are cooking, slice your meat. Stir the veggies here and there so they don't burn. Sprinkle the onion and pepper slices with a little salt and pepper.
After the veggies have cooked to your liking (I made mine well done), remove them from the skillet.
Put the remaining fat to the skillet and add your sliced meat to the hot skillet.
Allow to cook for approximately 2-4 minutes and then start turning them over. Add the garlic as well.
When the meat is finished to your liking, another 2-4 minutes, drain the excess liquid off.
Add the cooked veggies back to the skillet and heat through.
Turn off the heat and top with the shredded cheese.
Allow the cheese to melt and serve warm.