Combine the mince, onion, zucchini and tomato sauce in a bowl. Season with salt and pepper. Form 10 small burger patties. Heat oil in a pan and cook half the patties for 2-3mins on one side then flip and top with cheese slices cooking for another 2-3mins. Remove from pan and cover with foil while cooking the remaining patties.
Spread one side of the rolls with aioli then top with patties, lettuce and tomato and extra sauce. Top with other side of roll and place a skewer through the slider to hold in place.