Peel and cut tomatoes in 1/4-inch slices. Places tomatoes in a colander, and sprinkle with a 1 teaspoon salt. Set aside to drain.
Preheat oven to 350°
In a medium bowl, combine cheeses and mayonnaise.
Place drained tomatoes in baked pie shell. Sprinkle evenly with green onions and basil. Spread mayonnaise mixture over the top. Bake 30 to 40 minutes or until cheeses are lightly browned. Garnish with fresh basil, if desired.
