Brush 1 Tbsp. Olive Oil onto surface of skillet or griddle and heat it. Sprinkle with 1/2 tsp. onion powder. When pan is hot, place zucchini slices in one layer in pan. Drizzle remaining oil and sprinkle remaining onion powder on top. When zucchini starts to look cooked, flip it and sprinkle parmesan cheese over top. When cheese looks somewhat melted, flip again. When squash looks semi transparent, it's done.