Wash your Zucchinis well. Then cut lengthwise into half.
Spoon out the flesh and hollow out the zucchini so that you are left with the "boats".
Preheat your oven to 350 Fahrenheit/180 Celsius.
The soft center of the zucchini can be cut roughly smaller. Collect flesh in a mixing bowl.
Add to the zucchini filling the black pepper, salt, chopped onion, garlic, tomato sauce, cheese (reserve a ⅓ of your cheese) and herb seasoning of your choice. Mix everything well.
Stuff your zucchini boats with the prepared filling and sprinkle the ⅓ of reserved grated cheese, which you didn't mix into the filling, over the stuffed vegetable boats.
Sprinkle some olive oil over the stuffed squash.
Bake the Zucchini for about 20-25 minutes at 350 Fahrenheit/180 Celsius. Golden brown or until done.
Video
Notes
1. Smaller Zucchinis are better (see post for an explanation why). about 10 inches/25 centimeters 2. Use a vegetarian cheese to make this vegan. Not all cheese is vegetarian if it contains rennet. Pick a vegetarian grated Mozzarella or Emmentaler cheese. They mention if it's vegetarian or not on the packaging, except if it's from the farmer's market. In that case ask the person at the farmer's market. 3. Choose your seasoning herb blend. I like to use herb de Provence or Italian seasoning. You can use pizza seasoning too or simply dried oregano.