Rustic Tomato-Basil Tart

INGREDIENTS

1 1/2 lb

medium yellow tomatoes, cut into 1/4-inch-thick slices

1 1/2 lb

medium red tomatoes, cut into 1/4-inch-thick slices

1 1/2 tsp

salt, divided

1 cup

fresh corn kernels (about 2 ears)

1 tbsp

fresh lemon juice

3 tbsp

fat-free sour cream

1 1/2 cups

all-purpose flour

1/4 cup

yellow cornmeal

1/4 cup

chilled butter, cut into small pieces

1 tbsp

yellow cornmeal

1/2 cup

thinly sliced fresh basil, divided

1/3 cup

shredded fontina cheese

1 tbsp

chopped fresh oregano

2 tbsp

all-purpose flour

1/4 tsp

cracked black pepper