Although this hearty dish is called a "lasagna," it's somewhere between the classic potato gratin and the old-school casserole. Layers of thinly sliced potatoes are topped with canned tomatoes and a bacon-spinach mixture. Grated cheese finishes off the one-pan meal that pairs perfectly with a simple green salad.
While it needs 45 minutes in the oven, the prep time is minimal. To learn how to make this crowd-pleasing, innovative dish, read more. 1/4 pound bacon (about 5 slices), cut into 1/4-inch pieces Serves 6.
1 medium onion, thinly sliced
1 10-ounce package frozen spinach, defrosted and squeezed dry
1 1/2 cups milk
2 teaspoons kosher salt
1/2 teaspoon dried oregano
4 pounds Idaho potatoes (about 4 large potatoes), peeled and cut into 1/8-inch slices
1 28-ounce can whole tomatoes, drained and roughly chopped
4 ounces Swiss, Cheddar, or mozzarella, shredded
1/4 pound bacon (about 5 slices), cut into 1/4-inch pieces