3 potato rosemary bread gruyere Recipes

olive oil, divided, baking potatoes, peeled and thinly sliced, japanese eggplant , thinly sliced on diagonal, zucchini , thinly sliced on diagonal, tomatoes, thinly sliced, coarse salt, fresh ground black pepper, fresh rosemary, head garlic, shredded gruyere cheese, crusty bread, sliced 1/2 inch thick and toasted ,for serving (optional)

olive oil, chopped onion, chopped garlic, chopped fresh rosemary, divided, diced peeled yukon gold potato (about 1 lb), diced peeled rutabaga (about 3/4 lb), diced peeled turnip, diced peeled parsnip (about 1/2 lb), organic vegetable broth, water, heavy whipping cream, freshly ground black pepper, salt, diagonally cut french bread baguette, shredded gruyere cheese