Tri Tip Sandwiches! I marinated the Tri Tip in Worshestershire sauce, garlic, onions, and rosemary overnight, then grilled it on the BBQ (ok, my husband did that part!). Sliced thin, served on a Ciabatta roll with carmelized onions, white cheddar and horseradish aioli. Super delicious! Used the leftovers in burritos for lunch.