In a medium skillet cook ground lamb or beef, onion, and garlic over medium heat until lamb is no longer pink. Remove from heat; drain off fat. Stir in feta cheese, mint or oregano, and pepper. Set aside.

Place a grape leaf on a clean work surface, shiny side down and stem end toward you. Place 1 level tablespoon of filling about 1/2 inch from the bottom edge of each leaf. Fold the sides of the leaf over the filling, overlapping slightly. Starting at the bottom edge, roll up the leaf and place, seam side down, in a 2-quart square microwave-safe baking dish. Repeat with remaining leaves and filling. Cover the baking dish and chill until needed or heat and serve immediately.

To heat, add 1 tablespoon water to the baking dish. Brush grape leaf bundles lightly with olive oil. Cover and micro-cook on 100% power for 4 to 5 minutes or until heated through, turning dish once. (For a low-wattage oven, micro-cook bundles on high power for 5 to 6 minutes, rearranging once.) Serve immediately with lemon wedges. Makes 20 bundles (2 per serving).

Prepare bundles as directed. Cover the baking dish and chill up to 24 hours. To serve, micro-cook as directed.