Keto Zucchini Lasagna
A low-carb lasagna with zucchini sheets instead of pasta, a rich beef and tomato ragù and three cheeses — about 8 g net carbs per serving.
Serves 6 · Prep 25 min · Cook 45 min
Ingredients
- 3 large zucchini, sliced lengthways 4 mm thick
- 700 g ground beef (80/20)
- 400 g chopped tomatoes or passata (no added sugar)
- ½ onion, finely diced
- 4 cloves garlic
- 250 g full-fat cottage cheese (or ricotta)
- 1 egg
- 200 g grated mozzarella
- 40 g grated parmesan
- 1 tbsp olive oil (cooking fat)
- Dried oregano, basil, salt, pepper, chilli flakes
Method
- Salt the zucchini slices, leave 20 minutes, then pat very dry — this is what stops a watery lasagna.
- Brown the beef in the olive oil, add onion and garlic for 3 minutes, then the tomatoes and herbs. Simmer 15 minutes until thick.
- Mix the cottage cheese with the egg, parmesan and pepper.
- Layer in a 20 × 30 cm dish: ragù, zucchini, cheese mixture, mozzarella — three times, ending with ragù and mozzarella.
- Bake at 190 °C for 35–40 minutes until bubbling. Rest 10 minutes before cutting.
Tip. Roasting the zucchini slices for 10 minutes before layering removes even more water.
Nutrition per serving
| Nutrient | Per serving |
|---|---|
| Calories | 529 kcal |
| Fat | 37.3 g |
| Protein | 37.8 g |
| Total carbohydrate | 10.2 g |
| Fibre | 2.2 g |
| Net carbs | 8.1 g |
Calculated from USDA FoodData Central values for the weights listed; cooking fat counts 70% as eaten (our method). Seasonings are not counted. One serving is 41% of a 20 g net-carb day.
Fitting it to your macros
Need more protein? Increase the main protein ingredient by a third. Need more fat to stay full? Add butter, olive oil or avocado on the plate. The keto macro calculator gives your own daily targets, and Ketora can build a full week around recipes like this.
Frequently asked questions
How many net carbs are in keto zucchini lasagna?
About 8.1 g net carbs per serving (10.2 g total carbohydrate minus 2.2 g fibre), calculated from USDA data for the exact ingredient weights in this recipe.
Can I make it ahead?
It is best fresh, but leftovers keep 2–3 days in the fridge.