Mushrooms Florentine

4 tablespoons butter, melted, divided 1 pound medium-size whole mushrooms 1 teaspoon salt 1/4 cup finely chopped onion 2 (10 ounce) packages frozen chopped spinach, thawed and drained 1 cup shredded Cheddar cheese, divided Garlic salt, to taste

Directions Preheat oven to 350 degrees F. Place 2 tablespoons of the butter in a large skillet over medium heat. Add the mushrooms and cook until browned, browning the cap sides first. Stir the salt, onion and remaining 2 tablespoons butter into the spinach. Line a 10 x 7-inch casserole with the spinach mixture. Sprinkle 1/2 cup of the cheese over the spinach. Arrange the browned mushrooms over the cheese; season with the garlic salt and top with the remaining 1/2 cup cheese. Bake for 20 minutes or until the cheese is melted and browned. Serve hot over pasta or rice.

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