Our pick for poultry perfection! What makes H-E-B Marinated Chicken Breast Fajitas so amazingly delicious? It's all in the seasoning. This isn't just any kind of marinade mind you. It's a top secret blend of spices that transform lean chicken breast meat into something that's nothing short of pure fajita perfection. It's 97% fat free and 100% awesomely delicious.