These zucchini ravioli are incredibly light and delicious. Easy to make, and are a great low-carb alternative for a family weeknight meal. You won't miss the pasta!!
[adrotate group="2"] [adrotate group="4"]In a skillet, heat a little olive oil and saute the onions until softened, then add the garlic and stir through for a few minutes.
Add the tomato sauce, fennel, chilli flakes, sugar and season with salt and pepper. Simmer for 15 minutes, turn off heat and add the balsamic vinegar. Transfer sauce to a large baking dish.