1: Preheat your oven and prepare the zucchinis by cutting them in half and scooping out the insides.
2: In a bowl, mix together the scooped zucchini, Parmigiano Reggiano, ricotta, chopped onion, eggs, and salt.
3: Fill the zucchini halves with the mixture.
4: Top with pangrattato and a drizzle of olive oil.
5: Bake in the oven until golden brown and cooked through.
