Thoroughly rinse your zucchini and pat the excess moisture with a towel.
Carefully cut off the ends. Now simply cut across the zucchini to slice into 1/2-inch thick rounds.
Sprinkle rounds with a tiny bit of salt and pepper, then set aside on paper towels.
In a medium bowl, combine ground beef and all seasonings; stir until well combined.
Shape your ground beef into 8 equal sized mini-patties, about 1-inch thick.
Gently pat zucchini rounds dry with paper towels.
Lightly grease a large skillet with avocado oil cooking spray and heat over medium-high heat, then add sliced zucchini rounds, cook until slightly charred, about 1-2 minutes per side.
Set zucchini aside on a plate.
Add burger patties to the pan and sear each side until nicely golden, about 2-4 minutes. Flip to the other side, then add the cheese.
Continue to cook until the beef is done to your liking and cheese is nice and melty!
Assemble your burger sliders as shown, and serve immediately. Enjoy!