| Cut the zucchini into thin slices. | 
| Add salt to the boiling water and boil the zucchini. | 
| Drain the boiled zucchini from the water. | 
| Season it with salt, a tablespoon of olive oil and lemon. | 
| Cut the onions and mushrooms into slices. | 
| Toss it with a tablespoon of olive oil in a frying pan. | 
| Add grated tomatoes, salt and pepper to it. | 
| Put the boiled zucchini on a plate and serve with the mushroom sauce. | 
Nutritional values
| Carbs | Protein | Fat | Calories | |
|---|---|---|---|---|
| 3 zucchini | 15.9 | 6.2 | 1.6 | 87 | 
| 10-15 mushrooms | 34.2 | 32.4 | 3.6 | 231 | 
| 2 tablespoons of olive oil | – | – | 30 | 270 | 
| 1 teaspoon of salt | – | – | – | – | 
| ½ lemon | 2.7 | 0.3 | 0.1 | 8 | 
| 1 medium onion | 5.2 | 0.7 | 0.1 | 24 | 
| 1 tomato | 2.4 | 0.5 | 0.1 | 11 | 
| salt | – | – | – | – | 
| black pepper | – | – | – | – |