Fiesta Rice

I can't believe I haven't posted this. It's so easy, and adding the black beans makes it a one-dish vegetarian meal.

Chop up one onion and one green bell pepper
Saute in butter in med-large pot
Add one can of diced tomatoes plus a can of water
Add one cup of uncooked rice

Cover, until rice has absorbed the water.
Stir in a jar of salsa and a can of black beans
Salt and Pepper to taste

Add sour cream as garnish when you serve