1 C of any of The Olive Bin's Extra Virgin Olive Oils
5 oz shredded Gruyere cheese
1 large yellow onion, sliced
3 garlic cloves, minced
1 lb medium round potatoes, sliced
1 1/2 lbs medium tomatoes, sliced
3/4 lb zucchini, sliced
1 T fresh thyme
1/2 tsp black pepper