Cut steak into strips. Combine 1/4 cup flour, salt, and pepper; toss with steak strips to coat thoroughly. Put in crock pot with onion, garlic, and half of the green pepper strips; stir. Combine tomatoes with bouillon, soy sauce, and Worcestershire sauce. Pour into crock pot, moistening meat well. Cover and cook on low heat for 8 to 10 hours. One hour before serving, turn to high and stir in remaining green pepper strips. Serve over hot rice. Serves 8.