Oops sorry. Missed your first post. Welcome to the forum.
I eat the LC meals from time to time. In fact I have the Chicken in peanut Sauce today. Yum
Chicken breasts - I eat around 4-5 ounces uncooked weight, most of the time.
How much you lose depends on a lot of factors: How heavy you are to start with, if you have been "dieting" recently, your age, your activity level, any medications.. etc. Don't compare you loss with anyone else because we need to all just do the best we can. it might be better or less than someone else's loss, but that's okay.
Your body is probably not happy right now with the new foods and is not knowing what to do. This too will pass and as crazy as it sounds, exercise WILL give you energy and it is not optional.