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Crave-Worthy French Onion Stuffed Shells
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Crave-Worthy French Onion Stuffed Shells

Everything you love about French onion soup is in these Crave-Worthy French Onion Stuffed Shells. But now it's in a brand new (yet still incredibly delicious, and cheesy) unexpected form. -
Prep Time20 mins
Cook Time9 hrs
Total Time9 hrs 20 mins
Course: Main Course or Side Dish
Servings: 6 -8 servings
Calories: 0kcal


  • 4 tablespoons butter
  • 2 tablespoons olive oil
  • 5 large sweet onions sliced
  • ½ cup beef broth
  • ¼ cup red wine
  • 2 teaspoons salt
  • 1 teaspoon pepper
  • 5-6 fresh thyme sprigs plus 1 tablespoon of thyme leaves
  • 8 slices French bread
  • olive oil
  • 1 tablespoon garlic powder
  • 1 box large pasta shells cooked according to package directions. Drained.
  • 5 ounces Gruyere cheese shredded
  • 8 ounces Swiss cheese shredded
  • ¼ cup grated Parmesan cheese


  • Add the butter, olive oil, sliced onions, beef broth, red wine, salt and pepper into the slow cooker. Top with the fresh thyme sprigs. Stir well.
  • Cover the cooker and set to high. Cook for 8 hours on high, stirring occasionally.
  • Cool the onions. Remove the thyme sprigs.
  • *Note - The onions can be made in advance and kept in the refrigerator until ready to assemble the casserole.
  • Preheat oven to 425 degrees.
  • Line a baking dish with sliced French bread.
  • Drizzle the bread with olive oil and evenly sprinkle with garlic powder and half of the fresh thyme leaves.
  • Use a large spoon to liberally fill the cooked and cooled pasta shells with the cooled carmealized onions.
  • Place the stuffed shells on top of the prepared French bread slices.
  • Evenly spread the grated cheeses over the stuffed shells and sprinkle with the remaining fresh thyme leaves.
  • Bake uncovered in a preheated oven for 30-35 minutes or until the cheese is melted and golden and the shells are heated through.
  • Serve hot and enjoy!


Tools and equipment:
7 quart slow cooker
chefs knife and cutting board
box grater
wooden spoon
casserole dish


Serving: 0 | Calories: 0kcal | Carbohydrates: 0g | Protein: 0g | Fat: 0g | Saturated Fat: 0g | Polyunsaturated Fat: 0g | Monounsaturated Fat: 0g | Trans Fat: 0g | Cholesterol: 0mg | Sodium: 0mg | Potassium: 0mg | Fiber: 0g | Sugar: 0g | Vitamin A: 0IU | Vitamin C: 0mg | Calcium: 0mg | Iron: 0mg