Ingredients

4   hamburger buns or rolls, split 1/2   cup mayonnaise 1   small garlic clove, finely minced 2   teaspoons jarred capers, rinsed, drained and coarsely chopped 1/2   teaspoon freshly ground pepper 1   pound ground sirloin 1/2   medium onion, finely chopped 1/3   cup finely chopped roasted red bell pepper (from a 12-ounce jar) 3   tablespoons plain bread crumbs 1   tablespoon olive oil, plus additional for grill 1   tablespoon minced fresh basil 1   teaspoon dried oregano 1   teaspoon red wine or sherry vinegar 3/4   teaspoon minced fresh rosemary 1/4   teaspoon kosher salt 4   slices provolone 5   artichoke hearts (from a 14-oz. can), drained and thinly sliced 1   cup (1 ounce) arugula

Description

4   Hamburger Buns Or Rolls, Split 1/2   Cup Mayonnaise 1   Small Garlic Clove, Finely Minced 2   Teaspoons Jarred Capers, Rinsed, Drained And Coarsely Chopped 1/2 &n

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