Double-Double Protein Style Burger

  • Servings: 2
  • Difficulty: easy
  • Rating: ★★★★★
  • Print

A healthier version of an In-n-Out classic.



  • ½ lb ground beef
  • 2  medium onions (finely chopped)
  • 1 ripe tomato (sliced)
  • 1 iceberg lettuce head (small)
  • 3 teaspoons avocado oil
  • 1 teaspoon salt
  • 1 tablespoon black pepper



  1. Heat 2 teaspoons of avocado oil in a skillet over medium-high heat.
  2. Add onions and the salt. Reduce the heat to medium-low, and stir occasionally until the onions are browned.
  3. Add 1 tablespoon of water to the skillet and continue cooking until the water evaporates and onions begin sizzling again.
  4. Repeat until the onions are dark brown and extremely caramelized, about 3 times.
  5. Transfer to a bowl and let them cool.
  6. Peel the lettuce to a create your “buns.” Set aside.
  7. Shape the ground beef into four patties. Season with plenty of salt and pepper.
  8. Heat the remaining 1 teaspoon avocado oil in a skillet over medium-high heat;
  9. Swirl the oil to make a thin layer. When the oil is very hot, add the burger patties.
  10. Cook the patties fully through on both sides.
  11. Place one patty into the lettuce wrap. Add 1 tablespoon of sauce, followed by some caramelized onions and 1 tomato slice.
  12. Repeat the step a second time for the full double-double assembly.
  13. Wrap in parchment paper or aluminum foil.
  14. Accompanies well with animal-style fries.
  15. Enjoy!


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