Low carb and keto friendly, this easy zucchini lasagna with ground meat is a healthy alternative to your typical lasagna. This casserole is so good that you won’t miss the noodles.

Zucchini Slices Instead Of Lasagna Noodles

This saucy zucchini lasagna is the perfect low carb solution to your Italian comfort food cravings. Wheat-based lasagna noodles are replaced by thin zucchini slices, and you won’t even notice the pasta’s gone. In fact, I like this version a lot better than traditional pasta-based lasagna. Most of the flavor is in the sauce itself, so taking away the lasagna noodles doesn’t detract much.

You’ll love the sauce; it’s very savory and hearty, richly flavored with beef, onions, tomato sauce, oregano, and a pinch of cayenne. The sauce is roasted between layers of zucchini and mozzarella cheese, imparting delicious flavors to the other ingredients.

Liquid Control

Liquid control is key in any recipe that uses zucchini, which is a very wet vegetable that exudes a lot of liquid during cooking. To combat this so that you don’t end up with a soggy lasagna, a common solution is to salt the zucchini prior to cooking to release some liquid, or grill the sliced zucchini. However, I wanted to keep this recipe as simple as possible. So instead of salting or pre-cooking the zucchini, I just make sure that my meat sauce is overly thick by simmering it long enough to evaporate much of its moisture. Then, as the zucchini bakes, its released liquid gets absorbed by the thick meat sauce, avoiding an overly watery lasagna.

To ensure that your meat sauce is thick, I recommend using tomato sauce. Avoid thinner tomato mixtures such as diced or crushed tomatoes. Some pasta sauces will work, but they vary quite a bit in consistency, so adjust the simmering time accordingly.

Serving & Leftovers

You can serve the zucchini lasagna with appetizers and side dishes like:

• boiled artichokes with balsamic dip
• almond flour biscuits
• garlic roasted mushrooms
• almond flour garlic knots
• creamed spinach

Casserole leftovers usually store and reheat well, and this zucchini lasagna is no exception. Cover and refrigerate leftover servings, and reheat in the microwave. I often find that flavors and textures improve after chilling overnight in the refrigerator.

4.82 from 54 votes

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Zucchini Lasagna

An easy zucchini lasagna casserole with ground meat, onions, and tomato sauce. Keto, low carb, and gluten free.

Course Main Course

Cuisine American

Prep Time 20 minutes

Cook Time 1 hour 5 minutes

Cooling 15 minutes

Total Time 1 hour 15 minutes

Servings 4 servings

Calories 430 kcal

Ingredients

• 20 ounces zucchini (about 2 large or 3 medium, peeling is unnecessary)
• 1 pound extra lean ground beef (95% lean is ideal, no less than 90% to avoid a greasy wet dish)
• 15 ounces canned unsalted tomato sauce (check the ingredients label to make sure no salt is listed)
• 1 cup finely chopped onion (about 1 small onion)
• 1 1/2 cups (5oz) shredded mozzarella cheese (I use low moisture part skim)
• 1/2 cup (2.2oz) finely grated parmesan cheese (should be powder-like, finer than sand)
• 1 tablespoon olive oil
• 1 tablespoon dried oregano
• 2 teaspoons salt
• 1/4 teaspoon ground cayenne

Instructions

Making the meat sauce:

1. Heat a high-sided pan over medium heat until hot (I use a 10-inch wide nonstick pan with 3-inch high sides). Add olive oil to coat the bottom of the pan. Add onions and cook until softened, about 5 minutes, stirring occasionally.
2. Add ground beef to the pan. Cook until it's no longer pink, about 5 minutes, breaking it apart as it cooks.

3. Add tomato sauce, stirring it in. Bring to a simmer over medium-high heat, then gradually reduce the heat as needed to maintain a simmer. Simmer for about 10 minutes to thicken the sauce, stirring frequently. The resulting sauce should be thick, easily clinging to the meat and onions; this helps reduce excess moisture in the resulting lasagna.

4. Add oregano, salt, and cayenne. Stir for a minute until well-mixed. Turn off the heat.

Assembling and baking the lasagna:

1. Position an oven rack in the lower half of the oven, and preheat to 375 F. Set aside an 8x8 inch baking dish.
2. For each zucchini, slice off both ends and discard them. Stand the zucchini vertically on a stable flat end, and carefully slice along its length into 1/8 - 1/4 inch thick strips. Don't worry if the slices aren't perfect because it won't affect the deliciousness of the lasagna.

3. Arrange about one-third of the zucchini slices along the bottom of the baking dish so that they are slightly overlapping in a criss-cross pattern. Evenly spread about half of the meat sauce over the zucchini. Distribute about 1/2 cup of mozzarella cheese on top of the meat sauce.

4. Repeat with another zucchini layer, a meat sauce layer, and a cheese layer.
5. Top with remaining zucchini slices. Add another 1/2 cup mozzarella cheese and 1/2 cup parmesan cheese on top of the zucchini. Give the baking dish a quick shake so the cheeses spread out and settle into cracks.
6. Bake at 375 F until the lasagna is golden brown on top, about 45 minutes. Let it cool for at least 15 minutes to allow the lasagna to set and cease bubbling before slicing.

Nutrition Info

Makes 4 Servings

Amount Per Serving (quarter of 8x8 casserole):

Calories 430
Total Fat 23g	36%
Saturated Fat 11g	57%
Cholesterol 104mg	35%
Sodium 1550mg	65%
Net Carb 8g
Total Carb 12g	4%
Dietary Fiber 4g	15%
Sugars 7g
Protein 38g

Vitamin A 21% · Vitamin C 41% · Calcium 41% · Iron 23%

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