Prepare rice according to package directions.
Brown beef and onion in skillet.
Add salsa, tomato sauce and bouillon cube.
Bring to a full boil; cover, reduce heat and simmer for 5 minutes.
Serve beef mixture over rice; top with garnishes to taste.
Garnish with: cilantro, chopped tomatoes, chopped onions, sour cream, shredded cheddar, sliced pitted black olives or tortilla chips.