Delicious Asian gluten-free broccoli beef stir-fry. Keto friendly and easy to cook in under 40 minutes. This beef and broccoli stir fry recipe  is a classic. Juicy beef sautéed with fresh broccoli florets and coated in a delicious savoury sauce. In this recipe sirloin steak is used but you could also use fillet steak. Serve with rice if desired.