Greek Burgers

ingredients

• 1 1/2 pounds ground beef sirloin
• 2 teaspoons Worcestershire sauce
• 1 tablespoon snipped fresh oregano or 1 teaspoon dried oregano, crushed
• 1/2 teaspoon kosher salt
• 1/4 teaspoon freshly ground black pepper
• 2 tablespoons olive oil
• 1 1/2 cups thickly sliced button or cremini mushrooms
• 2 small red onions, sliced
• 1 red sweet pepper, stemmed, seeded, and cut into strips
• 1/3 cup crumbled feta cheese
• 4 kaiser rolls, split and toasted

  
  

  directions

  1. In a large bowl combine beef, Worcestershire sauce, half of the oregano, salt and pepper (try not to overmix). Shape into four 1/2-inch thick patties. Set aside.
  2. In a large cast-iron skillet heat 1 tablespoon of the oil over medium-high heat. Add mushrooms, onions and sweet peppers. Cook and stir for 4 to 5 minutes or until crisp-tender. Remove skillet from heat. Stir in remaining oregano. Transfer vegetable mixture to a medium bowl; cover to keep warm.
  3. Return skillet to stovetop; add remaining 1 tablespoon oil. Heat over medium-high heat until oil is very hot. Add beef patties. Cook patties for 12 to 15 minutes or until an instant-read thermometer inserted in centers registers 160 degrees F, turning once. (Reduce heat if burgers brown too quickly.) 
  4. Serve burgers topped with vegetables and feta on toasted buns.