In these same four months, what kind of strength progress have you seen? How have your numbers and/or reps moved on the big basic lifts?
And what does your training week look like?
What's your long-term goal? "Much bigger without much fat" isn't very specific.
I guaran-damn-tee that this is why you're not seeing good progress. Yesterday, you had two small meals and some small snacks. I didn't run the numbers, but if that was even 1500 calories I'd be surprised.
I'll tell you right now, in the last four months you've definitely had more days like this than you realize, so your nutrition has been screwed from the start. You're not only under-eating, but what you are eating simply isn't appropriate for your goals. "I had no time" is no excuse when it takes 20 minutes once a week to boil two dozen eggs. Hard-boiled eggs are nature's protein bar, comes with a wrapper and everything.