Heat oven to 350. In bottom of pie tin, place a thin layer of mozzarella cheese and bake until just melted. Remove and allow to cool.
Grate the zucchini and squeeze liquid out with paper towel. Layer grated zucchini over cheese in pie tin. Add another layer of cheese over the zucchini.
In skillet, add chopped bacon and allow a bit of grease to coat the pan. Add in sliced green onions and toss to coat.
Add cherry tomatoes and sliced mushrooms and cook until slightly tender.
Slice shallots and mince garlic, adding to skillet, along with seasonings. Toss to combine all.
As all veggies are cooked, add in small pieces of torn kale and stir until mixed together, being careful not to break tomatoes too much.
Add skillet mixture to the pie tin.
In mixing bowl, combine eggs and whipping cream and beat well. Season with salt and pepper and pour over vegetables, patting down to have everything submerged. Depending on size of pie tin, you may need to adjust quantity of eggs.
Top with another layer of both cheeses and put in oven to bake, about 30 minutes. Remove when toothpick test comes out clean. Allow a few minutes to cool before serving.