Stop cutting fat off your meats.
Flax Meal (in the baking section).
All three of these are cheap ways to get healthy fats into your diet.
If your diet doesn’t have enough energy (fats or carbohydrates) your body starts developing the checmical pathway to use protein as a fuel source. This eats away at the protein you’re consuming, and leads to the body catabolizing your LBM (lean body mass- existing muscle tissue).
Which is bad.
To prevent this, make sure you’re consuming enough carbs or fats. To do it simply, I’d recommend adding a serving of fats to each of your meals.
So your diet would be more like:
Oatmeal protein shake
vegies steak w/ fat on
protein shake w/ 1/2 cup flaxseeds,
vegies tuna w/ 1 tbsp butter
Protein shake w/1/4 cup peanuts
vegies chick w/ 1/4 cup peanuts
The idea is to get some healthy fats in there. It’ll add maybe $8 to your weekly diet (mostly from the flaxseeds- believe me, they’re worth it). It’ll increase your caloric intake by about 1000kcals, which will decrease the rate at which your fat drops, but it will also prevent you from plateuing and starting to lose muscle mass.
Good luck, let us know how it goes.