Season the chicken with sea salt and pepper to taste and a squeeze of half a lemon and let them sit while you prep the rest of the ingredients.

Heat a small skillet on medium heat and add the olive oil. Sauté the onions with salt and pepper until they brown.

You can either make the chicken on the grill or on a grill pan on the stove. Either way, the chicken gets grilled for about 2-3 minute on each side.

Spread butter onto the buns and toast them in the oven, face side up. Once they brown add a slice or two of cheese to the bottom bun and melt.

Assemble the sandwich with your lettuce, onions, sliced avocado, and whatever else you’d like. Top it all off with the Russian dressing for a kick.