I've added high Fiber snacks back into my diet to help with this.
My new go to - I add it to my daily cottage cheese to increase my protein and fiber Enlightened Plant Protein Gluten Free Roasted Broad (Fava) Bean Snack, Garlic and Onion also Raw Rev Glo Protein Bars, Creamy Peanut Butter & Sea Salt, 1.6 Ounce Bar (Pack of 12) 15g Protein, 2g Sugar, 14g Fiber, Keto-Friendly, Vegan, Plant-Based Protein, Gluten-Free Snack Bar
https://www.amazon.com/gp/product/B071CPQFCH/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B00PVS5PCE/ref=oh_aui_search_detailpage?ie=UTF8&th=1
or at night I'll indulge in a spoonful of peanut butter. But so far these three things have really helped me.
I'm just 6.5 weeks out and my daily cal range between 600 - 700 depending on if I eat nuts or have protein shakes. If not, I really try to get my proteins in through strictly food. Additionally, I know it's OK to use protein shakes to count towards total fluids, but I do not. My decaf coffee and protein shakes are counted towards "meals" and not fluid. I also drink anywhere from 64 to 96 oz of (flavored) water per day