Pasta with Marinated Cherry Tomato Sauce YIELDS:4 servingsTOTAL TIME:30 minsINGREDIENTS1/2 sweet onion, very thinly sliced1/2 bulb fennel, cored and thinly sliced1/4 c. sherry vinegar3 tbsp. olive oilKosher salt and pepper1 lb. cherry tomatoes, halve...