This low carb 4-ingredient cheddar zucchini bake is the kind of simple side dish that earns a permanent place at summer dinners, potlucks, and busy weeknight meals. With just zucchini, cheddar cheese, eggs, and a little onion, it bakes into a warm, bubbly casserole with plenty of savory flavor and a comforting texture that makes fresh zucchini especially appealing, even for folks who usually need a little convincing at the table.
Serve this cheesy zucchini bake alongside grilled burgers, hot dogs, roasted chicken, or simple pork chops for an easy family meal. It also pairs nicely with a crisp green salad, sliced tomatoes, or fresh fruit if you want to keep the plate light, and it fits right in on a brunch table with bacon or sausage too.
Low Carb 4-Ingredient Cheddar Zucchini Bake
Servings: 6
Ingredients
4 medium zucchini, thinly sliced
2 cups shredded cheddar cheese
3 large eggs, beaten
1/2 cup finely chopped onion
Directions
1. Preheat the oven to 375°F and lightly grease a medium ceramic baking dish.
2. In a large bowl, combine the sliced zucchini, chopped onion, beaten eggs, and 1 1/2 cups of the shredded cheddar cheese. Stir well so everything is evenly coated.
3. Transfer the mixture to the prepared baking dish and spread it into an even layer. Sprinkle the remaining 1/2 cup cheddar cheese over the top.
4. Bake for 30 to 35 minutes, or until the zucchini is tender and the top is melted, bubbly, and lightly golden around the edges.
5. Let the bake rest for 5 to 10 minutes before serving so it sets up a bit and scoops more neatly onto plates.
Variations & Tips
For less moisture: If your zucchini are especially large or watery, sprinkle the slices lightly with salt and let them sit for 10 minutes, then pat dry before mixing. That little step helps the bake stay firmer instead of turning watery.
For picky eaters: Peel some or all of the zucchini before slicing if you have family members who notice the green skin right away. The flavor stays mild, and the softer look can make it more appealing on the plate.
Cheese swap: Sharp cheddar gives the most flavor, but you can use a mild cheddar if you want a gentler taste. A mix of cheddar and Monterey Jack also melts beautifully and keeps the casserole nice and creamy.
Add a little seasoning: Even though this is a true 4-ingredient version, a pinch of black pepper, garlic powder, or Italian seasoning works well if you want to dress it up without much extra effort.