"Classic scalloped potatoes get a burst of color, heartier texture and a healthy update with the addition of chopped spinach. The greens in this side dish also create a nice contrast to the creamy, velvety potatoes...."
INGREDIENTS
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2 1/2 pounds Yukon Gold potatoes, cut into 1/4-inch slices (about 8 cups)
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3 tablespoons extra-virgin olive oil, divided
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1 small onion, finely chopped (about 1 cup)
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2 cloves garlic, minced
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3 tablespoons all-purpose flour
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1/2 teaspoon salt
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1/4 teaspoon white or black pepper
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2 1/2 cups low-fat milk
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1 pound chopped frozen spinach, thawed
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1 cup grated Parmesan cheese, divided