This Mushroom and Onion Meatloaf combines savory ground beef with fresh mushrooms and onions, creating a juicy and flavorful dish. Perfect for family dinners, it's easy to prepare and is sure to please everyone at the table.
Set aside six whole mushrooms while chopping the remaining mushrooms finely.
In a large bowl, mix together the ground beef, chopped mushrooms, bread crumbs, minced onion, ketchup, beaten eggs, salt, and black pepper until everything is thoroughly combined.
Layer half of the meat mixture evenly into a 9x5-inch loaf pan.
Press the whole mushrooms into the top of the mixture, stems downwards.
Cover the mushrooms with the remaining meat mixture and gently press down to seal the layers together.
Bake in the preheated oven for about 1 hour and 45 minutes, or until the center is no longer pink and the internal temperature reaches 160°F on an instant-read thermometer.