This spaghetti with roasted vegetable sauce is a spaghetti with lots of vegetables! Would you like to eat more vegetables or, for example, do you have children who have trouble eating vegetables? This spaghetti with lots of vegetables is the perfect solution. This spaghetti contains lots of hidden vegetables in the sauce. Roast them in the oven and blend them into a smooth sauce. You won't taste a thing, so success is guaranteed. I went for paprika and zucchini with fresh herbs and strained tomatoes, but if you prefer other vegetables, that's possible too.