Kris
You’re not alone in this. I also do not have a grill, I just have the pizza oven and a box fryer (don’t make fun of my little fryer) lol. I don’t have the hood system to use drop down fryers.
Anyways I buy precooked 4 oz grilled chicken brst (sorry on spelling, apparently the word sensor won’t let me say the B word for the part of chicken it is). We then cut them into our portion sizes, bag and keep them ready in the prep station for use. We use an Italian dressing on our chicken that we drizzle on before we place it in the oven. This prevents it from being too dry and adds a bit more taste. We use the chicken on our sandwiches, and salads.
I know its more work, but buying the chicken more times during the week will allow you to not have to have it frozen. It’s makes a better product. I currently go to rest. depot about 2-3 times a week for items.