20 Estes St, Ipswich, MA (978) 356-0500 (no web site)
The Riverview is an Ipswich landmark and a hidden gem. Locals know it, but outside the Ipswich area, it's pretty unknown.
The Riverview is good at pizza. Really good at it, which is a good thing because that's all they make. Their pizza is a thin crust style, which depending on where you grew up might be called "New England" or "Greek-style". Their sauce is flavorful and not too sweet and the kitchen is liberal with the toppings.
The menu is pretty easy to figure out, and, as you might be able to see, the Riverview is very reasonable. One pizza with an assortment of toppings will run you about $7.00. For most folks, a single pizza is enough for one. It does reheat well though, so feel free to order enough to take home.
Beware, when your pizza comes to your table, you will be starving (there can be a bit of a wait when the place is hopping - all weekend really). Watch out; the sauce will be molten, so don't scarf that first slice down if you value your tongue and tastebuds. Pull a slice onto your "plate" - really a sheet of waxed paper - and let it cool off a little first.
If you're in the area, do stop in for a bite. The Riverview's got a full bar so you have a drink while you wait for dinner. They do a lot of takeout also, so feel free to call ahead if you'd rather eat at home.