Cauliflower & Leek Gratin

Cauliflower & Leek Gratin

Use up all your leftover veggies to make this winter warming dish! Cauliflower & Leek Gratin Gratin½ cauliflower (cut into small florets)1½ broccoli (cut into small florets)¾ leek (thinly sliced)¾ red onion (thinly sliced)White Sauce2 tsp olive oil⅓ cup lite sour...