Cookie Sheet Sliders - In a large bowl, combine the ground beef, salt, pepper, worcestershire sauce, and grated onion. Web preheat the oven to 400°f. Mix well until all ingredients are. Web cook the beef and onions michelle mcglinn/tasting table set the oven to preheat to 350 f. Finely dice the onion and press between paper towels to remove excess moisture. Preheat oven to 425 degrees f. Spread ground beef evenly on top of onions, pressing down firmly until the meat reaches the. Web bake at 350 degrees for about 15 minutes. (the meat will shrink) remove the pan from oven and layer the meat with the cheese slices. Prepare a 13x9 nonstick rimmed sheet pan.
Finely dice the onion and press between paper towels to remove excess moisture. In a large bowl, combine ground beef, breadcrumbs, eggs, and salt. Preheat oven to 425 degrees f. Web bake at 350 degrees for about 15 minutes. Web preheat the oven to 400°f. Mix well until all ingredients are. Prepare a 13x9 nonstick rimmed sheet pan. Spread ground beef evenly on top of onions, pressing down firmly until the meat reaches the. (the meat will shrink) remove the pan from oven and layer the meat with the cheese slices. Web cook the beef and onions michelle mcglinn/tasting table set the oven to preheat to 350 f. In a large bowl, combine the ground beef, salt, pepper, worcestershire sauce, and grated onion.