Top with the pita or naan, breaking it into pieces to get a nice even layer.
2 pitas or naan
Spread the rest of the hummus on top of the pita or naan.
Top with the cauliflower, zucchini, and spinach mixture. Place the casserole dish in the oven for about 5 minutes to warm up the casserole.
Notes
If you start with room temperature hummus, you can skip the oven step. In fact, you don't technically need to place the casserole in the oven if you are pressed for time, it's already fully cooked! But I like to give it that last boost of heating before serving.
If some of the zucchini rounds are rather large, it helps to cut them in half for more even cooking.
Make your own hummus, use my Turmeric Hummus recipe (turmeric is a great anti-inflammatory, cancer-fighting spice!), or use your favorite store-bought hummus.