I had to try a LOT of different whole wheat/whole grain pastas before I found one I liked. I still make homemade spaghetti sauce, but I make it a lot "cleaner" than I used to: Less olive oil, more vegetables of all kinds (onions, tomatoes, garlic, peppers, mushrooms to add bulk and flavor), lean ground beef, cooked and rinsed before added to sauce. And I eat less of the whole she-bang. I still love it and enjoy it as much as what I used to eat -- with a lot less indigestion, too!
I have a fantastic whole wheat pizza dough recipe which, frankly, with toppings, I think few people would even notice the difference from a white flour recipe. Now when I make a personal pizza, I use half the dough I used to use for my old version, roll it very thin, limit the cheese and meat, pile on the vegetables and enjoy every bite.
I enjoy an occasional grilled hamburger on a nasty regular white bun, but I skip the cheese and pile on the vegetables. And no fries with that, thanks. Beans instead, please!
If I eat chicken breast, it has to be IN something. I don't really enjoy them on their own. So I poach them in broth with herbs and/or seasonings, dice them up and add them to salads. Or I put them in wraps with lots of veggies, or add them to other recipes. If I'm going to eat something just as a protein, I'll choose something besides a chicken breast most of the time. Pork loin or a lean cut of beef is better in my mind. No more than 5 ounces, though.
I still have mashed potatoes, but I make them with 1% milk and just a dab of butter. They're pretty close to the ones I used to love. Small portion, though, and not very often.
I've pretty much given up bread except for one sourdough English muffin at breakfast. And honestly, I don't miss it much. I bake my own, so it's really good -- but honestly, my friends miss it more than I do! Now I just make it for special occasions, and I limit my intake to one slice. Sure enjoy that once slice, though.
And yes, it does get easier... once your taste buds and body have acclimated to these changes, you may even come to prefer them -- as I have. I sure don't miss that indigestion!!
Hope these suggestions are of help!