1-1/2 pounds ground beef
2/3 cup balsamic vinegar
1 package (16 to 18 ounces) refrigerated prepared polenta, cut into 8 slices
2 tablespoons olive oil
Salt and pepper
1 package (8 ounces) fresh mozzarella cheese, cut into 8 slices
2 medium tomatoes, cut into 4 slices each
Thinly sliced fresh basil
Bring vinegar to a boil in 2-quart saucepan. Reduce heat; simmer, uncovered, 9 to 10 minutes or until reduced to 1/3 cup. Set aside.
Meanwhile lightly shape ground beef into eight 1/2-inch thick patties.
Brush polenta slices with oil. Place patties in center of grid over medium, ash-covered coals. Grill patties, uncovered, 11 to 12 minutes (over medium heat on preheated gas grill, covered, 9 to 10 minutes), until instant-read thermometer inserted horizontally into center registers 160°F, turning burgers occasionally and basting with 2 tablespoons reduced vinegar after turning. Arrange polenta around patties; grill 11 to 12 minutes (for gas, grill 9 to 10 minutes) or until heated through, turning once. Season burgers with salt and pepper, as desired.
For each serving, layer 1 each polenta slice, burger, mozzarella slice and tomato slice. Drizzle with remaining vinegar and sprinkle with basil, as desired.
Nutrition information per serving: 335 Calories; 153 kcal Calories from fat; 17 g Total Fat; 6 g Saturated Fat; 8 g Monounsaturated Fat; 67 mg Cholesterol; 397 mg Sodium; 17 g Total Carbohydrate; 2.3 g Dietary Fiber; 27 g Protein; 2.2 mg Iron; 3.8 mg Niacin; 0.3 mg Vitamin B6; 1.7 mcg Vitamin B12; 4.3 mg Zinc; 16.1 mcg Selenium;