Soak the red lentils for at least 4 hours or overnight, then rinse and drain well.
Blend lentils with eggs, sour cream, olive oil, salt, and baking powder until smooth.
Spread the batter evenly on a parchment-lined 37 × 25 cm (14.5 × 10 in) baking tray.
Bake at 350°F (180°C) for about 35 minutes, until the crust is set and lightly golden.
Spread tomato sauce over the crust and add mozzarella, shrimp, olives, and jalapeños.
Broil for 5–10 minutes until the cheese melts and turns golden.
Slice and serve warm.
