Grate zucchini into a large bowl. Salt the shredded zucchini with a good amount of salt. Set aside for 10 minutes.
Squeeze out excess water from shredded zucchini and place it back into the large bowl.
Reserve ½ cup of panko breadcrumbs in a separate small bowl.
Combine the remaining ingredients and seasonings together in the large bowl with the zucchini.
Measure out ¼ cup of the zucchini mixture onto a baking sheet, and use the measuring cup to gently flatten each patty out.
Heat a skillet to medium-high and add a thin layer of avocado oil.
Once the oil is hot, take 2-3 patties at a time and gently coat both sides with the reserved panko breadcrumbs. Place the patties into the skillet. Cook for 2-3 minutes on both sides, making sure they're browned and crispy on the exterior. Continue with the remaining patties.
Serve with ranch or sour cream and enjoy!