Two places that I would recommend in Springfield:
1) Cafe 131 on Main Street. Everything that I have had there has been really good; servings are good sized. The place is part antique shop and part restaurant. Quiet atmosphere.
2) The Pump Cafe--also on Main Street. This place is cute and is a converted auto shop complete with rollup door. The french toast with cream cheese is to die for; however, one order is really too much for one. If you go with a friend, I would just getting one order of it and split a side of eggs and bacon or whatever you like. The french toast is made with really thick bread (as in 1.5-2' thick). You get these two huge, thick slices of bread cut into diagonals, so you have two triangle shaped french toast sandwiches filled with cream cheese and covered with berry syrup. Delightful.
The Tomahawk, in Marcola, is a country hole in the wall. However, they do have a cream cheese frosted sinammon (yes, I know I wrote "sin"ammon) sweetroll to die for. It is huge! Rest of the food is your standard breakfast fare--nothing too exciting. Portions are good sized.
Finally, if you happen to drive on the highway from Marcola to Brownsville, there is a little farm that sells jams, syrups, fruits, vegetables, nuts--whatever is in season. If you look at a map, it is between Crawfordsville and Brownsville. Anyhow, as you head west on the highway, it is on the north (right) side. If you see the Wheeler Nut Barn as you head west you have gone a mile too far. Anyhow, they have terrific Rhubarb syrup, which I bought on a fluke, because I don't even really like rhubarb. My gut feeling is that all of their jams/syrups are probably awesome...I can't wait to go back for more!