Preheat oven to 350 F.
Beat one egg in a bowl. Add the rice, and mix well. Pat down into greased pie pan to form a crust.
Cut the kernels off the corn. Measure out 1 1/2 cups of corn, distribute the rest in the rice crust.
Put the 1 1/2 c corn in a blender, and blend until liquefied, stopping and stirring down as needed.
Add the other 3 eggs and the salt to the blender, and blend another minute or two until smooth.
Slice the tomatoes about 1/4" thick.
Pour the corn mixture into the rice crust. Arrange the tomato slices on top of the corn custard.
Bake at 350 for 35 to 40 min, until done
Sprinkle cheese over top, if desired.
Let rest five minutes to set before serving.