Stuffed Bell Peppers

1 lb ground hamburger
1/4 c. chopped onion
1 1/2 c. cooked minute rice
16 oz stewed or diced tomatoes
salt & pepper to your taste
1c. or so (sometimes I like more) Velveeta cheese
4 bell peppers (I like to use one of each color, green, red, orange and yellow) washed, decored (is that a word?) & cut in half
White cheese of your choice (Swiss, Mozzarella, Monterey Jack, etc.)

Brown meat and onion. Combine the rest ingredients then add Velveeta in chunks. Don't melt all the way. Fill peppers and place in a glass baking dish. Cover with foil and bake at 350 for 1 hour. Remove the foil the last 10 minutes. Put 1/2 a slice of swiss or some other sliced cheese on the peppers for the last few min. (I put both halves on because I like cheese!!)