Mix protein powder & water first (can just use a shaker or blender)
start with 1:.5 ratio water to oats (ex: 1/2 c water to 1/4 c oats) add more if needed. You want just a little bit of "extra" liquid sitting on top after mixing in with oats.

Finely grate carrots.
Mix in all ingredients

Let sit in fridge for 4+ hours.

If using greek yogurt, mix yogurt, protein, and oats, then add just a splash of water.

BATCH PREPPING:
Make one big serving and divide into containers for the number of servings you need.