Prep the ZucchiniStart by slicing the zucchini into thin rounds. Sprinkle some salt on them and let sit for 10 minutes. Pat them dry with a towel to remove excess moisture.
Sauté the AromaticsMelt butter in a skillet over medium heat. Add onions and garlic. Sauté until they turn golden and soft. Set aside.
Mix the FillingIn a large bowl, beat the eggs. Add sour cream, cheddar, mozzarella, and Parmesan. Stir in the cooked onion mixture, salt, pepper, and oregano. Mix until creamy.
Layer the CasserolePreheat oven to 375°F (190°C). Grease a baking dish. Layer half the zucchini at the bottom. Pour half the cheese mixture over it. Repeat layers. Sprinkle breadcrumbs on top for a crispy finish.
Bake to PerfectionPlace the dish in the oven. Bake uncovered for 30–35 minutes. The top should be golden brown, and the casserole bubbly.
Notes
Cheesy zucchini casserole is quick, easy, and incredibly delicious. It's a wonderful way to enjoy vegetables without sacrificing taste. Try it today and make it a staple in your kitchen