If you've had it, you know its crispy and amazing.he definitive characteristics of St. Louis-style pizza are a super-thin yeast-less crust, the common (but not mandatory) use of Provel processed cheese, and pizzas cut into squares or rectangles instead of large pie shaped slices. The crust is too thin to be folded like a NY style slice so little party pieces werer made. Provel is a trademark for three cheeses fused to form one (provolone, swiss, and white cheddar), used instead of (or, rarely, in addition to) the mozzarella or provolone common to other styles of pizza. (wikipedia.com) George's pizza off of 95th St. in Overland Park, KS is my favorite pizza joint hands down. They do a similar style to this.