A few of my favorite things to meal prep:
Steaks, season and wrap in plastic free butcher paper then freeze. Usually good for a month.
High flavonoid foods are easy to eat more constantly. I will make Greek Salads with smoked chicken and lots of Feta cheese. A chicken Salad with bacon, smoked chicken and lots of blue cheese and cheddar. Could add hard boiled eggs to up the protein. No heating required!
Soups, Zuppa Tuscona the knockoff olive garden recipe is great. Extra Italian sausage! Chowders, interesting fact.... I stray away from carbs, my clam chowder has potatoes. I ate a huge bowl and two hours later had a work physical, I was still in ketosis!
Pickled eggs, I will make a huge jar. Keeps forever in the fridge easy grab snack.
Ive made Chaffles (cheese waffles) good bread substitute, just eggs, cheese, some ground pork rinds (optinal) These make a great BLTA
Breakfast ive done fruit and Greek yogurt for years, never got tired of it.
Carnivore pancakes, they are amazing!
1 Cup ground pork rinds
1 tbs beef gelatin
1/4 tsp baking powder
1/4 cup sweetener, recipe calls for Monk Fruit but I use honey
4 eggs
1/4 cup heavy cream
1 tbs vanilla
blueberries
Eat with real maple syrup, honey or butter
Not sure if these hit your protein goals, 50g is tough to do while not getting burned out...