Step 1

In a medium bowl, combine the lemon juice and water. Place the eggplant slices into the lemon water to soak while you bring a saucepan of lightly salted water to a boil. Drain and rinse the eggplant slices, then place them into the boiling water. Cook for 8 minutes, or until barely tender. Drain.

Step 2

Preheat the oven to 350 degrees F (175 degrees C). Lightly grease a 2 quart casserole dish. Layer the eggplant slices, tomatoes and onion in the dish, sprinkling each layer with a little flour as you go. In a medium bowl, stir together the sour cream, garlic, salt and pepper. Spread this over the top of the casserole. Sprinkle generously with paprika.

Step 3

Bake for 45 minutes in the preheated oven, until the top is nicely browned and there is a bubbly sauce.