I bought a bunch of little pre-cooked packets of rice and beans to heat up in the microwave:

https://www.amazon.com/gp/aw/d/B0932TK6MC?psc=1&ref=ppx_pop_mob_b_asin_title

https://www.amazon.com/gp/aw/d/B07TMDGLR7?psc=1&ref=ppx_pop_mob_b_asin_title

https://www.amazon.com/gp/aw/d/B07B3YHGV3?psc=1&ref=ppx_pop_mob_b_asin_title

I've also been downing a million protein shakes a day:

https://www.amazon.com/gp/aw/d/B07MJL8NXR?psc=1&ref=ppx_pop_mob_b_asin_title

High fiber cereal/ oatmeal is also good to help with constipation.