Place the mushrooms in a food processor and pulse a few times until they’re finely diced.

Heat the olive oil in a skillet over medium heat. Add the mushrooms and cook for about 5 minutes, until tender. Remove from heat and transfer mushrooms to a mixing bowl. Let cool for a few minutes.

Add the ground beef, salt, onion powder, and pepper to your mushrooms. Mix until just combined, and form into 10 small slider-size patties with your hands.

Place the patties on a plate in the fridge.

Meanwhile, prepare your grill. If using a gas grill, heat to medium-high. If using a charcoal grill, you should be only able to hold your hand about a half foot above the grates for 4-5 seconds before needing to pull it away (if you can hold it there for a long time, wait for it to heat up more).

Put your patties on the grill. Cook around 3 minutes on the first side, and around 3-4 minutes on the second side – or until the internal temperature reaches 160 degrees.

Add two quarter-squares of cheese to each burger. Let the cheese melt, then remove patties to a clean plate.

Slice the apples into 20 thin rounds. Place each slider burger on an apple slice, and top with another apple slice. Enjoy!