Sirloin Steak
Sirloin steak is both lean and flavorful – just 3 ounces packs about 25 grams of filling protein. Since top-round cuts are less fatty than other cuts of beef, you’ll retain flavor without overloading on saturated fat: One serving size contains about 3.5 grams, while the same amount of T-bone or rib-eye will have upwards of 10 grams.