Chicken breasts often come with the chicken tender still attached to the bottom. Remove the tenders and save them for another use before continuing with the recipe. Frozen broccoli can be substituted for the fresh, however it should be fully thawed and steamed (as directed in the recipe) and then drained well. Firmly pack the filling into the chicken pockets to prevent it from falling out during cooking. If any filling does spill out during the searing or baking process, simply scoop it back in!