01 -
Slice each zucchini in half lengthwise. Use a small spoon or melon baller to scoop out the seeds and flesh, leaving about a 1/2-inch wall. Chop the scooped flesh and set it aside.
02 -
Heat olive oil in a large skillet over medium heat. Add ground beef and diced onion. Cook, breaking up the meat, until it is no longer pink. Stir in garlic, oregano, basil, salt, and pepper. Cook for 1 minute more until fragrant.
03 -
Remove the skillet from heat. Fold the chopped zucchini flesh and half the shredded cheese into the beef mixture. The zucchini adds moisture and helps fill the boats generously.
04 -
Stir together the tomato sauce, remaining chopped zucchini, a pinch of salt, and the extra oregano. Spread this mixture across the bottom of a 9x13 inch baking dish.
05 -
Fill each zucchini half with the beef mixture and place them in the sauced dish. Sprinkle the remaining cheese over the tops. Bake at 400°F (200°C) for 20-25 minutes until the zucchini is tender and the cheese is bubbling and lightly golden.