It's nothing too fancy, but a good basic pizza can be had from Leaning Tower of Pizza. It's a small place next to Homespun Bikes (formerly Wesley Cleaners), and has a quiet, neighborhood vibe even though they're close to Lakeshore. They have the standard pizza toppings, plus some good combos. They serve beer (a selection of New Belgium beers on tap) and wine, as well as soft drinks.
I went there today after church to watch the Women's World Cup final. (That was an amazing game, even if the U.S. did lose. And I ran into a guy I worked with 15-20 years ago and hadn't seen since then. Which wasn't surprising, since he lives in Munich now.) It wasn't very busy, but there were probably 10 people there, most to watch the game. Some of the reviews on Yelp suggest it's a great spot to bring kids.
In any event, if you're in the neighborhood and looking for a good, basic pizza, check out Leaning Tower. It's on Wesley, just off Lakeshore, and is a quieter alternative to the bustle of Grand Avenue and the upper part of Lakeshore.