Old Bay Burger - Martin's Famous Potato Rolls and Bread

Ingredients

• 1 1/2 Pounds Ground Beef
• 1 Small Onion, diced
• 1 Slice Martin's Potato Bread, torn into tiny pieces
• 1 Egg, lightly beaten
• 3 Tablespoons Old Bay Seasoning
• 3 Tablespoons Fresh Parsley, chopped
• 1 Teaspoon Mustard
• 1 Teaspoon Worcestershire Sauce
• 6 Martin's Big Marty's Rolls, for serving
• Tomato Slices, for serving
• Cheese, for serving
• Lettuce, for serving