Heat large nonstick skillet over medium heat until hot. Add Ground Beef; cook 8 to 10 minutes, breaking into 3/4-inch crumbles and stirring occasionally. Pour off drippings. Stir in salsa; cook 2 minutes. Remove skillet from heat; keep warm.
Cook's Tip: Cooking times are for fresh or thoroughly thawed ground beef. Ground beef should be cooked to an internal temperature of 160?°F. Color is not a reliable indicator of ground beef doneness.
Line 4 plates with salad greens. Divide beef mixture among 4 plates. Top beef with cheese, tomato, pepper and onion. Garnish with olives and dressing, as desired.
Cook's Tip: Optional Toppings: sliced ripe olives, prepared ranch or French dressing