Light grill. Mix together beef, pork, spicy brown mustard, onion, garlic cloves, garlic powder, paprika, and salt and pepper. Mix well with your hands then create 7 slider patties, pressing in the middle with your thumb.
Place on grill, grill for 5-6 minutes per side.
Put sliders on top of zucchini fritter cups, top with mayo and ketchup and also avocado. Eat with a fork. It’s just easier that way.