Keto Burger with Mushrooms, Onions and Gluten-Free Bun – Mikey’s LLC. Skip to content

keto burger with mushrooms and onion


  • 1 pound fresh ground beef
  • 1 teaspoon garlic powder
  • 1 teaspoon gluten-free steak seasoning
  • 1 box Mikey’s Original Gluten-Free English Muffins
  • 1 teaspoon chili powder
  • 4 onion slices
  • 2 portobello mushrooms, gills removed
  • 1 tablespoon extra virgin olive oil
  • Salt to taste


  1. Mix beef together with garlic powder and steak seasoning. Form into 4 patties.
  2. Brush any dirt off the mushrooms and remove stems and gills. Then cut in half.
  3. Heat grill to high heat.
  4. Brush the onion slices and mushroom slices lightly with olive oil.
  5. Sprinkle chili powder over the onions.
  6. Place the onions, mushrooms and burgers on the grill. Add a very light sprinkle of salt to each.
  7. Grill about 2-3 minutes until grill marks appear on burgers. 
  8. Flip onions, mushrooms and burgers and salt again, very lightly.
  9. Grill burgers an additional 2-3 minutes and then reduce heat to medium and grill 3-6 minutes more depending on desired doneness. Remove onions and mushrooms from direct heat when they’ve reached your desired level of doneness.
  10. Just before burgers are done cooking, brush Mikey’s English muffins lightly with oil on both sides. Grill on both sides until toasted.
  11. Assemble burgers with the onions, mushrooms and your favorite condiments.