2 tablespoons olive oil
1 small onion, diced
1 red bell pepper, diced
1 green bell pepper, diced
3 cloves garlic, minced
2 small zucchinis, sliced
Salt, to taste
Pepper, to taste
1 cup (120g) mozzarella cheese
1/2 cup (60g) cheddar cheese
1/2 cup (60g) parmesan cheese
2 tablespoons breadcrumbs