So you finally saw the Functional MD, good for you.
Sounds like he's taking the "integrative or holistic approach" which is very good, and will be good not just for your UC, but for your long term health.
THe first few weeks on the Paleo diet are tough, especially if you've been used to eating crap - what I mean by that is: grains, wheat, gluten - and our western culture has enabled addiction to these so easily, partly because they're so cheap and available everywhere.
But meal planning is key: in terms of shopping lists, etc...
Paleo is basically lots of: fish, grass-fed animal products (which are a healthy source of CLA), salads and veggies, some low fructrose fruits, and nuts. You can do dairy as long as it's (IMO) goat and sheep dairy (BTW, they make a goat brie that is wonderful and my favorite sheep cheese is manchego), and you substitute almond milk for regular milk. You can do healthy nut butters: almond butter, cashew butter, macademia butter - all very healthy and tasty. I use butter because it contains butyric acid and is good for UC.
The whole basis of Paleo is: anti-inflammatory.
But yes, you're going to be eating alot of healthy protein, which is all good for you.
They do make Rice cereal I forget the brand, it's no gluten, and manufactured in a non-cross contamination factory - and it tastes pretty good with almond milk.
For ease of work, I like the whey protein shakes with almond milk because they're healthy and it's one less thing to have to cook. I have 2 of those a day.
Here are some of the grass-fed meals I have, with some veggies or salad:
hamburger patties (no bun), ground lamb hamburgers (no bun), filet mignon, beef hot dogs without buns but with healthy saeurkraut (no nitrates), bison filet mignon, bison ground burgers, brisket, hard boiled eggs, or egg yolk (love egg yolks), salmon, herring (non grass-fed) but high in omega 3's and a food that doesn't require work, lobster (non-grass fed) once in a while with lots of butter.
Sometimes, I will eat some baby potatoes, boiled, with lots of butter and himalyian salt, but when I do, due to food combining rules, I will only eat this as a meal by itself.
Personally, I find that grass-fed animal products at Whole Foods is too expensive, so I've found a local farmer whose prices are half of those at Whole Foods, you can find a local farmer to you through this website: www.eatwild.com
Hope this helps aquafly, and if I can help with anything else, please ask.