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Three-Cheese Florentine Burgers

We love cheese. It's an ingredient that's always in my fridge. I came up with this recipe to showcase one of our favorite combinations: spinach and cheese! —Deborah Biggs, Omaha, Nebraska
  • Total Time
    Prep/Total Time: 30 min.
  • Makes
    4 servings


  • 1-1/3 cups fresh baby spinach
  • 1 tablespoon plus 1-1/2 teaspoons balsamic vinaigrette
  • 1 large egg
  • 1/3 cup fresh baby spinach, finely chopped
  • 3 tablespoons crumbled feta cheese
  • 3 tablespoons shredded Asiago cheese
  • 3 tablespoons chopped red onion
  • 1 tablespoon plus 1-1/2 teaspoons ketchup
  • 2 teaspoons Worcestershire sauce
  • 1/2 teaspoon salt
  • 1/2 teaspoon pepper
  • 1 pound ground beef
  • 4 ounces fresh mozzarella cheese, sliced
  • 4 whole wheat hamburger buns, split


  • Place spinach in a small bowl. Drizzle with vinaigrette and toss to coat; set aside.
  • In a large bowl, combine the egg, chopped spinach, cheeses, onion, ketchup, Worcestershire sauce, salt and pepper. Crumble beef over mixture and mix well. Shape into four patties.
  • Grill burgers, covered, over medium heat or broil 4 in. from the heat for 5-7 minutes on each side or until a thermometer reads 160° and juices run clear. Top with mozzarella cheese. Grill 1-2 minutes longer or until cheese is melted. Serve on buns with spinach mixture.

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