butter (for greasing the pan)
1 1/2 pounds Earthbound Farm Organic Heirloom Fingerling Potatoes (peeled and cut lengthwise into 1/4-inch-thick slices)
1 tablespoon canola oil
4 slices thick-sliced bacon (cut crosswise into 1/4-inch pieces)
1 medium yellow onion (finely diced)
3 cloves garlic (finely minced)
16 ounces Earthbound Farm Organic Baby Spinach
2 tablespoons butter
2 tablespoons unbleached all-purpose flour
1 cup chicken stock
3/4 cup heavy (whipping) cream
3 cups shredded cooked chicken
    Freshly ground black pepper
2 cups grated Gruyère or Emmenthaler cheese