Classic Cauliflower au Gratin

By janette

4.35 / 5

15min

40min

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1 large head cauliflower cut into bite-size pieces
1 cup light sour cream
1 cup shredded Cheddar cheese
½ cup diced onion
3 tablespoons melted butter
2 tablespoons red pepper flakes or to taste
¼ teaspoon salt
½ cup panko bread crumbs