Preheat oven to 425°F.
Prepare The broccoli and other veggies. Chop the Broccoli into bite sized chunks. The stem of the broccoli can also be used by cutting it into slices. I place the broccoli in a pot of boiling water to cook a bit (5-10 minutes) as I cut the other veggies. I do this because the broccoli takes a bit longer to cook than the onions and tomatoes. By precooking it a bit it makes the whole pie the same consistency. As the broccoli is cooking chop the onions into small chunks and the tomatoes into 1/4 inch slices.
Grate the cheese!
Drain broccoli water and place broccoli into pie plate.
Layer the other ingredients: Layers of the Veggie Pie are as follows from the bottom up.
Broccoli, Onions, Cheese, Tomatoes, Mayonnaise, Oregano, Salt & Pepper.
Cook in oven for 40 minutes. Until the top of the pie is slightly browned.
Remove from oven and let sit for about 5 minutes before cutting.
ENJOY!