Combine the shredded zucchini, large eggs, grated onion, shredded cheddar cheese, dried basil, and salt in a large mixing bowl. Add the Bisquick and stir well.

Shape the mixture into about 6 equal patties, roughly 1/2 inch thick, and place them on a lined plate.

Melt butter in a large skillet over medium-high heat and once bubbling, add the patties.

Cook the patties for 4-5 minutes on one side until golden brown and crispy.

Gently flip each patty and cook for an additional 4-5 minutes until both sides are golden brown.

Transfer the crispy zucchini patties to a paper towel-lined plate and serve warm with a dipping sauce.