Overnight oats are the easiest make-ahead breakfast there is, but most versions top out around 10g of protein. This one blends cottage cheese and Greek yogurt into the base before it even touches the oats, pushing it to 28g per jar without a scoop of powder.
Everything goes into the jar the night before — five minutes of prep, then the fridge does the work. By morning the oats have absorbed the liquid into something thick and pudding-like, ready for whatever toppings you're in the mood for.