Restaurant-style Spinach Casserole

Ingredients

• Servings: 4
• 1 (10.75 ounce) can condensed cream of celery soup
• 1 tablespoon all-purpose flour
• 4 tablespoons butter
• 1/2 teaspoon garlic salt
• salt and pepper to taste
• 2 (10 ounce) packages frozen chopped spinach, thawed and drained
• 1 onion, finely diced

Recipe

• in a saucepan, whisk together soup, flour, butter, garlic salt, salt and pepper. add spinach and onion, cook over medium heat until thick and hot.