Foryoueats: Cheeseburger Sliders (Easy, 30-min Recipe)

Ingredients

• 2 lb lean ground beef, (90/10 or 93/7 fat content)
• 1/2 Tbsp olive oil
• 1 tsp salt
• 1 tsp black pepper
• 1 tsp garlic powder
• 1/2 large yellow onion, finely diced
• 1/4 cup mayonnaise
• 8 slices medium cheddar cheese
• 6 oz medium cheddar, shredded (or used more sliced cheese)
• 24 dinner rolls, (or use 2 packs of 12)
• 2 Tbsp unsalted butter, melted, plus more to grease baking sheet
• 1 Tbsp sesame seeds