Hi...I just wanted to get in on this topic. I am from STL now living in Chicago area. I also miss the Provel Cheese. It is actually a St. Louis thing. I looked it up on the Internet...type in Provel Cheese.
There are a few favorites from STL that I couldn't find when I first arrrived here, but, I have since located them.
Olive Garden serves Toasted Ravioli..sauce is not meat sauce..chunky marinara. Giordannos on S. Rt. 59 serves Toasted Ravioli...not meat Ravioli, but 3 different types. A sausage...all cheese...a spinach and artichoke. Sauce is not a meat sauce, but a good marinara.
Pork Steaks can be bought. Just ask for a sliced Pork Butt.
I have not found a really thin Pizza Crust....yet.
Most of the foods you mentioned can be ordered online. My Sister in California orders Gooey Butter.
When I go back to STL, I stop at Schuncks and buy Provel and take it home. It really lasts a long, long, time in the fridge without getting moldy.
I miss the Salads from STL. Namely the 'Rich and Charlie' Salads. Most of the STL Restaurants make a version of that salad. I have not had a good salad here in Chicago area, except for the Garbage Salad at Gene and Georgettis (spelling?).
Now I am Hungry. Think I will make a salad...