Feta Burgers With Grilled Red Onions

• 3 lbs lean ground beef
• 1 cup feta cheese, packed, crumbled
• 2 teaspoons dried oregano
• 1 1/2 teaspoons salt
• 1 1/2 teaspoons ground black pepper
• 8 large garlic cloves, peeled
• 1/2 cup extra virgin olive oil
• 1 teaspoon extra virgin olive oil
• nonstick vegetable oil cooking spray
• 2 medium red onions, peeled, each cut crosswise into 4 slices
• 8 hamburger buns
• 2 large tomatoes, each cut crosswise into 4 slices

1. Break up beef in large bowl.
2. Sprinkle feta, oregano, salt, and pepper over (meat); toss.
3. Divide into 8 portions; form each into 4 1/2-inch burgers, pressing in center to form slight indentation. *DO AHEAD Can be made 1 day ahead. Cover; chill.
4. Puree garlic in processor; With machine running, gradually add 1/2 cup oil; process 30 seconds. *DO AHEAD Can be made 1 day ahead. Cover; chill.
5. Spray grill rack with nonstick spray.
6. Prepare barbecue (medium-high heat).
7. Brush onion with 1 tablespoon oil; sprinkle with salt and pepper.
8. Place burgers and onions on grill. Cover; cook 5 minutes.
9. Turn onions and burgers; cook until onions are charred in spots and burgers are medium-well, about 4 minutes longer.
10. Transfer to plate. Brush cut sides of buns with garlic oil and place buns, cut side down, on grill; toast about 1 minute.
11. Turn buns; cook until heated, about 1 minute.
12. Place burgers on bun bottoms and top each with onion, tomato, and bun top.

lean ground beef, feta cheese, oregano, salt, ground black pepper, garlic, extra virgin olive oil, extra virgin olive oil, nonstick vegetable oil cooking spray, red onions, buns, tomatoes

Taken from www.food.com/recipe/feta-burgers-with-grilled-red-onions-260911 (may not work)