This Keto Zucchini Hamburger Casserole is a tasty and healthy mix of ground beef and zucchini. It’s packed with flavor and perfect for a low-carb meal!
Plus, it’s super easy to prepare—just layer the ingredients and let the oven do the work. I love how the cheese gets all melty on top. Yummy! 🧀
Key Ingredients & Substitutions
Ground Beef: This is the star of your casserole, adding rich flavor. If you prefer, lean ground turkey or chicken makes a great alternative. It keeps the dish lighter while still being filling.
Zucchini: Zucchini is fantastic for keeping this dish low-carb and moist. If you don’t have zucchini, you could use shredded carrots or yellow squash as good substitutes. Just remember to squeeze out excess moisture if using any of those!
Sour Cream or Cream Cheese: These add creaminess. You can swap sour cream for Greek yogurt for a lighter option, or use a dairy-free version if you’re avoiding dairy altogether.
Cheddar Cheese: Cheddar gives a nice sharpness. Feel free to use other cheeses like Monterey Jack or mozzarella for different flavors. Just make sure it’s a cheese that melts well!
What’s the Best Way to Cook the Ground Beef?
Cooking the ground beef properly is key to ensuring it’s well-seasoned and prevents it from being greasy. Here’s how:
- Start by heating your skillet to medium heat before adding oil or butter. This helps to prevent sticking.
- When you add the beef, use a spatula to break it into smaller pieces. Once it’s browned, ensure to drain any excess fat. This keeps your casserole from becoming too oily.
- Don’t rush it! Letting it brown fully adds depth of flavor, so take your time and keep stirring.
How to Prepare Zucchini Without Excess Water?
Excess moisture from zucchini can make your casserole soggy. Here are some tips:
- If using shredded zucchini, after shredding, place it in a clean kitchen towel and squeeze gently to remove extra water.
- Let the zucchini sit for 10-15 minutes with a pinch of salt before handling; this draws out even more moisture.
Enjoy preparing this hearty casserole! Each step brings you closer to a delicious meal that’s both satisfying and healthy.
Keto Zucchini Hamburger Casserole
Ingredients:
- 1 pound ground beef
- 2 medium zucchinis, shredded or diced
- 1/2 cup diced onion
- 1/2 cup diced bell pepper (optional)
- 2 cloves garlic, minced
- 3 large eggs
- 1/2 cup sour cream or cream cheese (softened)
- 1 cup shredded cheddar cheese (divided)
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 teaspoon Italian seasoning or dried oregano
- 1/2 teaspoon paprika (optional)
- 1 tablespoon olive oil or butter (for cooking)
How Much Time Will You Need?
This delicious casserole takes about 15 minutes to prep and 30 minutes to bake, giving you a total of about 45 minutes from start to finish. It’s quick enough for a weeknight meal and perfect for leftovers!
Step-by-Step Instructions:
1. Preheat the Oven:
Start by preheating your oven to 375°F (190°C). This ensures it’s hot enough to cook the casserole evenly when you’re ready to bake.
2. Cook the Veggies:
In a skillet over medium heat, add the olive oil or butter. Once it’s hot, toss in the diced onions and bell peppers. Sauté for about 3-4 minutes until they soften. This will help bring out their flavors!
3. Add Garlic and Beef:
Next, add the minced garlic to the skillet and cook for about 30 seconds until it smells amazing. Then, add the ground beef, breaking it apart with a spatula. Cook until it’s browned and fully cooked through, usually around 5-7 minutes. Don’t forget to drain any excess fat. Season with salt, pepper, Italian seasoning, and paprika, and set aside.
4. Prepare the Zucchini Mixture:
In a large bowl, whisk together the eggs and sour cream (or cream cheese) until smooth. Then, stir in the shredded zucchini, half of the cheddar cheese, and a little pinch of salt and pepper. Mix everything together until well combined.
5. Layer the Casserole:
In a greased baking dish (about 8×8 inches), spread half of the zucchini mixture evenly across the bottom. Then, layer the cooked ground beef mixture on top. Finally, spread the remaining zucchini mixture over the beef, smoothing it out as you go.
6. Add the Cheese Topping:
Sprinkle the remaining shredded cheddar cheese on top of the final layer. This will create a cheesy crust that everyone will love!
7. Bake:
Place the casserole in the oven and bake for 25-30 minutes, or until it’s set and golden brown on top. The smell will drive you wild!
8. Cool and Serve:
Once baked, take the casserole out of the oven and let it cool for about 5 minutes. This gives it time to set before serving. Cut into squares and enjoy your cheesy, hearty Keto Zucchini Hamburger Casserole!
This dish is perfect as a filling dinner, and leftovers are just as delicious the next day. Happy cooking!
img src=”https://thedinnerinspiration.com/wp-content/uploads/2025/09/keto-zucchini-hamburger-casserole-recipe.webp” alt=””>
Can I Use Frozen Zucchini for This Recipe?
Yes, you can use frozen zucchini, but make sure to thaw and drain it completely to avoid excess moisture in the casserole. Squeeze out any water using a kitchen towel after thawing.
What Can I Substitute for Ground Beef?
If you’re looking for alternatives, lean ground turkey or chicken works well. For a vegetarian option, try using lentils, chickpeas, or a meat substitute like tempeh or tofu.
How Do I Store Leftovers?
Store any leftovers in an airtight container in the refrigerator for up to 3 days. You can also freeze it for longer storage—just make sure to let it cool completely before freezing. Thaw in the fridge overnight and reheat in the oven or microwave.
Can I Make This Casserole Ahead of Time?
Absolutely! You can prepare the casserole up to the baking step, cover it tightly, and refrigerate for up to 24 hours. When ready, just pop it in the oven and bake as directed, adding a few extra minutes if it’s cold from the fridge.
