Preheat oven to 350 degrees. Slice green peppers in half and deseed/core. Place on a greased baking tray, cut side up, and bake for 20-25 minutes, until soft

Meanwhile, heat a large pan over medium/high heat, spray with cooking spray. Slice onion and red pepper into thin strips. Add to the pan with half the seasonings. Sauté on the pan until they start to become a little soft and translucent

Add the beef and the remaining seasonings to the pan with the onion and pepper, stirring and chopping up the beef as it cooks. Completely cook the meat, drain and set aside

Remove the peppers from the oven, dump any excess water, stuff the pepper with a small amount of meat mixture and sprinkle with a small amount of cheese. Repeat this layering process until the peppers are competely stuffed and all the meat and cheese is used up

Place back in the oven for 5 minutes, until cheese is melted