Crockpot - Eight-Layer Casserole

1/2 pound lean ground beef
2 tablespoons imitation bacon bits
1 small onion, chopped
15 oz can tomato sauce
1/2 cup water
1/2 teaspoon chili powder
1/4 teaspoon salt
1/4 teaspoon ground black pepper
2/3 cup long-grain rice
8 3/4 oz can whole-kernel corn, drained
1/2 cup chopped green bell pepper

Crumble ground beef evenly over bottom of a slow cooker. Sprinkle with bacon bits, then onion. In a medium bowl, combine tomato sauce, water, chili powder, salt, and black pepper; pour half over beef and onion layers. Sprinkle rice evenly over top, then corn. Top with remaining tomato sauce mixture, then bell pepper. Cover and cook on LOW about 5 hours or until rice is tender.