Easy Cheeseburger Sliders on Hawaiian Rolls | Party Food

Ingredients

• 1 pound lean ground beef.
• 1 medium onion, finely chopped.
• 2 tablespoons mayonnaise.
• 2 tablespoons BBQ sauce or ketchup.
• 1/2 teaspoon garlic powder.
• 1 teaspoon kosher salt.
• 1/2 teaspoon black pepper.
• 2 tablespoons butter.
• 2 teaspoons Dijon mustard.
• 1 tablespoon brown sugar.
• 2 teaspoons sesame seeds.
• 12 Hawaiian rolls.
• 8 slices cheddar cheese.
• 2 teaspoons olive oil.