Putting peanut butter in dinner can be nothing less than a great idea. One of my favorites.

African Groundnut Stew

1 lb ground beef
3 medium onions, sliced
3 Tablespoons vegetable oil
1 can peeled tomatoes (and liquid)
1/2 cup peanut butter

Brown beef in oil. Add onion. Cook until soft. Add tomatoes and liquid. Cover and cook 20 minutes. Sti in peanut butter and heat through. Serve on rice.