poached eggs polenta

Ingredients

• 1 tube (18 ounces) polenta, cut into 12 slices (1/2-inch thick)
• 6 pieces Canadian bacon
• 2 teaspoons white vinegar
• 6 large eggs
• 2 tablespoons butter
• 2 tablespoons all-purpose flour
• 1/4 teaspoon salt
• 1 cup 2% milk
• 1/4 cup shredded Swiss cheese
• 1/4 cup grated Parmesan cheese
• 1 tablespoon sherry, optional
• 1 package (10 ounces) frozen chopped spinach, thawed and squeezed dry