Preheat oven to 350°F and lightly grease an 8x8 inch pan, or a pan large enough to fit the your matzoh board.
Layer 1: Place enough sauce to cover the bottom, about 1/3 cup.
Layer 2: Place the 1 matzoh board on top. You'll use 1 for an 8x8 inch pan, or use 1 1/2 or 2, depending on how big your baking pan is.
Layer 3: Spread more tomato sauce over the matzoh (1/4 cup).
Layer 4: Spread the ricotta mixture. If adding sautéed veggies, add after this layer.
Layer 5: Sprinkle with mozzarella cheese.
Repeat steps 3-6 until you have filled up your baking dish to the top.
End with tomato sauce then top with the remaining mozzarella.
Cover and bake for 40 minutes until cheese is melted and bubbling.