Step 1

Heat oil in large nonstick skillet over medium heat until hot. Place beef steaks in skillet; brown evenly. Pour off drippings. Add onions, tomatoes, garlic, salt and pepper to skillet; bring to a boil. Reduce heat; cover tightly and simmer 1-1/2 to 1-3/4 hours or until beef is fork-tender. Remove steaks; keep warm.

Step 2

Stir beans into cooking liquid; bring to a boil. Reduce heat slightly and cook 7 to 10 minutes or until sauce is thickened, stirring frequently.

Step 3

Stir in spinach; remove from heat. Let stand 1 minute. Serve steaks with bean mixture. Sprinkle with cheese, if desired.