Pulse the yellow and red tomatoes in separate batches in a food processor, just to a coarse puree.
Preheat oven to 475 degrees. Form dough (as directed in Basic Pizza Dough recipe) in a 9-by-13-inch rimmed baking sheet. Spread yellow tomato sauce over 1/3 of length, and red tomato sauce over remaining 2/3 of length. Drizzle with oil and sprinkle with salt.
Bake until cooked through and crust is golden on edges and bottom, 20 to 24 minutes.
Using a metal spatula, slide pie onto a cutting board. Slice into 6 pieces and serve.