Is this protein shake viable?

I'm 6'3 and 90kg, 22M. Trying to lose weight and build muscle. I'm already decently built since I used to work out pretty hard a year or two ago. But I didn't really follow a diet so not much development. I've started again recently since a month. Don't have access to protein powder. Was wondering if I can just drink this one shake for a day for nutrition.

50g oats 240ml milk 200g peanuts 100g pistachio 1 banana Honey Salt

The way I calculated it comes to somewhere around 1700-1800 calories and about 70 grams of protein. Don't really eat much anyway so can I just drink one of these a day and be done with it?