Protein shakes or smoothies are mostly for the convieniece, not mandatory at all. I got my size with no supplements outside of a cheap ass multivitamin.
Just straight food and milk, food was majority soy based too so I don't kno if that shyt is true about soy products but that's another topic
When you out and about, protein shake >>> fast food until you get home and eat dinner. It's also saves you money from avoiding fast food too so it pays for itself
Breakfast before work, lunch at work, gym ( maybe a "snack" or whatever before if you need it ), protein shake right after, then dinner. Not really that complicated