MAKE THE BOATS: Wash, dry, and cut 4 medium zucchini in half lengthwise.Scoop out some of thezucchini’s flesh and chop it finely with a knife or in a food processor.
PREP THE FILLING: Preheat oven to 400°F or 200°C.Heat 1 tablespoon extra virgin olive oil in a large skillet and sauté 1 medium onion (chopped) for 3 minutes.Add 3 cloves garlic (pressed) and the chopped zucchini pulpand cook for 5 minutes.Add 1 can (15 ounces) lentils, ½ cup walnuts (chopped), 1 can (15 ounces) crushed tomatoes, 2 tablespoons balsamic vinegar, 1 teaspoon dried oregano, ½ teaspoon salt, and ⅛ teaspoon black pepper.Simmer for about 10 minutes on medium heat, stirring occasionally.Turn the heat off, stir in ½ cup grated parmesan, then taste and adjust for salt, spices, and balsamico.
FILL AND BAKE: Fill zucchini shells with lentil mixture and arrange them on a baking tray. Optionally, top with more cheese.Bake at 400°F or 200°C for about 20 minutes or until the zucchini are fork tender.
SERVING SUGGESTIONS: Arrange boats on a serving platter and sprinkle with parsley and lemon wedges.They are delicious with Greek yogurt, tzatziki, or yogurttahinisauce.