Grilled tri tip steak is absolutely wonderful. tri tip steak is a versatile beef cut for grilling, broiling, and skillet-cooking. it is lean, tender, full of flavor, and a real bargain. the tri-tip is a cut of beef from the bottom sirloin subprimal cut. it is a small triangular muscle. serve this great steak with garlic goat cheese mashed potatoes, make-ahead mashed potatoes or sour cream mashed potatoes. also pairs well with parmesan asparagus or garlicky roasted broccoli.