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–+ servings
A perfectly grilled cheese sandwich, cut in half, with gooey melted cheese stretching out. Features caramelized onions.

Grilled Cheese Recipes Meal Prep That Actually Tastes Great

This recipe offers a delicious and practical approach to meal prepping classic grilled cheese sandwiches, ensuring a tasty and comforting meal even on busy days. It features a flavorful caramelized onion and cheese filling.
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Prep Time 15 minutes
Cook Time 20 minutes
Caramelizing Onions 1 minute
Total Time 36 minutes
Servings: 4 sandwiches
Course: Dinner, Lunch
Cuisine: American
Ingredients Equipment Method Notes

Ingredients
  

For the Caramelized Onions
  • 2 medium yellow onions diced
  • 1 tsp fresh thyme minced
  • 1 tsp fresh rosemary minced
  • 1 tsp brown sugar
  • 1.5 Tbsp butter
  • 1 Tbsp olive oil
  • 1 tsp salt
  • 1 tsp pepper
For the Grilled Cheese
  • 8 slices good quality bread thick cut Artisan bread recommended
  • 12 oz Gruyere cheese sliced thinly or grated, at room temperature
  • 6 oz White cheddar cheese sliced thinly or grated, at room temperature
  • 4 slices Muenster cheese at room temperature
  • 2 Tbsp mayonnaise for spreading
  • 1.5 Tbsp butter divided
  • 1 tsp fresh rosemary minced

Equipment

  • Skillet
  • Plate

Method
 

  1. Heat 1 1/2 Tbsp butter and olive oil in a skillet over medium-low heat. Add diced onions, salt, pepper, fresh thyme, and 1 tsp of fresh rosemary. Sauté, stirring often, until onions are soft and starting to brown, about 10 minutes.
  2. Stir brown sugar into the onions and cook for another minute. Transfer onions to a plate.
  3. Spread a little mayonnaise on one side of two pieces of bread.
  4. To the same skillet, add the remaining butter and rosemary. Heat over medium heat, swirling to coat the bottom of the skillet with the melted butter.
  5. Add both pieces of bread, mayonnaise side down, and cook until golden brown and crunchy, about 2-3 minutes.
  6. As soon as you add the bread to the skillet, add cheese to the top of each piece. Once it starts to melt, sprinkle a couple tablespoons of the caramelized onions over the top of one of the pieces of bread.
  7. When the bread is golden brown, sandwich the pieces of bread together and cook on low until the cheese is fully melted.
  8. Transfer to a plate. Repeat with the remaining slices of bread and ingredients.
  9. Slice and enjoy.

Notes

This recipe is adaptable for various dietary needs. For gluten-free options, use your favorite gluten-free bread. For low-carb, consider using a low-carb bread alternative or serving the filling in lettuce wraps.

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