Summer vegetable salad with zucchini and feta cheese. Delicious and filling!

Ingredients:
Red onion – 1/2 pc.
Lemon juice - 1 tbsp
Zucchini - 1 pc.
Tomatoes - 3 pcs.
Peppers - 1/2 pcs.
Parsley
Feta cheese - 100 g.
Salt
Black pepper
Olive oil – 2 tbsp.