hello its my first day at this site and i was wondering if im doing anything wrong with my routine. Im 6' 180 pounds with a medium build.
Monday and friday i work out chest, shoulders and arms. Wednesday is legs and back. i lift usually 5-7 reps per exercise.

my diet:

breakfast: protein shake and granola bar.
snack 1: 2 hot dogs plain and 2 oz. cheese
lunch: turkey wrap with veggies and a yogurt
snake 2: 2 hard boiled eggs and an orange
dinner: either a chicken salad or chicken and whole wheat noodles
snake 3: bed time protein shake.

i do mix up proteins with tuna and salmon

(on days i workout i also have a protein shake afterwards)

i have seen great gains in strength but muscle gains have slowed recently. I also work out at night about an hour before i go to sleep if that matters. any help would be appreciated.

p.s. - i have lost fat with this diet i used to weigh 210 pounds without any muscle