Season the ground beef with the Montreal Steak Seasoning then divide the ground beef into serving sizes and make the patties.
Brush the onions with olive oil and season with salt and pepper.
Grill the hamburgers about 2 to 3 minutes per side depending on thickness. Grill the red onions as well.Top with the cheese and arrange the burgers according to your liking. Serve
Recipe by Gluten-Free by Jan at https://glutenfreebyjan.com/gluten-free-bunless-burger/