1 pound lean ground beef
1 egg, lightly beaten
3 tablespoons dry bread crumbs
1 small onion, finely chopped
1 tablespoon chopped fresh thyme
1 teaspoon salt
ground black pepper to taste
2 mushrooms, thickly sliced
1 tablespoon olive oil, or as needed
1 Preheat an air fryer to 392 degrees F (200 degrees C).
2 Combine ground beef, egg, bread crumbs, onion, thyme, salt, and pepper in a bowl. Knead and mix thoroughly.
3 Transfer beef mixture to a baking pan and smooth the top. Press mushrooms into the top and coat with olive oil. Place the pan into the air fryer basket and slide into the air fryer.
4 Set air fryer timer for 25 minutes and roast meatloaf until nicely browned.
5 Let meatloaf rest at least 10 minutes before slicing into wedges and serving.