So, here's how to assemble. Grill the veggies on your stove top (my pal Kathy grilled them in balsamic vinegar) and set aside. Next, toast the bread in the oven at 400 for 2 - 3 minutes. Once you've done that spread with ricotta cheese and then put your roasted ingredients on top of that. top with meet and finally cheese and stick it under the broiler until the cheese melts and is golden brown. Easy and yummy and perfect for summer!