Onion Sandwich
Elevate your lunch game with this simple yet flavor-packed Onion Sandwich, a perfect fusion of savory, creamy, and tangy elements. Featuring buttery sautéed red onions layered between slices of golden toasted rustic bread, this sandwich is brought to life by a rich spread of mayonnaise and Dijon mustard, seasoned with just the right hint of salt and pepper. A sprinkle of fresh parsley adds brightness, while an optional layer of melted cheddar cheese takes this comforting creation to the next level. Ready in just 15 minutes, this quick and easy recipe is ideal for a satisfying snack or light meal. Whether enjoyed warm or at room temperature, the Onion Sandwich is a testament to how humble ingredients can create bold, unforgettable flavors.
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Recipe Information
Ingredients
- 1 medium-sized Red onion
- 4 slices Rustic bread
- 2 tablespoons Mayonnaise
- 1 teaspoon Dijon mustard
- 2 tablespoons Butter
- 0.5 teaspoon Salt
- 0.25 teaspoon Black pepper
- 1 tablespoon (chopped) Fresh parsley
- 2 slices (optional) Cheddar cheese
Instructions
Peel the red onion and slice it into thin, even rounds, approximately 1/8 inch thick.
Toast the slices of rustic bread until golden and crisp.
While the bread is toasting, prepare the spread by mixing mayonnaise, Dijon mustard, salt, and black pepper in a small bowl.
Heat a small skillet over medium heat and melt the butter. Sauté the onion slices in the butter for 2-3 minutes until softened but still slightly crisp. Remove from heat.
Spread the mayonnaise-Dijon mixture evenly over one side of each toasted bread slice.
If using cheese, layer a slice of cheddar cheese on two pieces of the bread. Top the cheese with the sautéed onions, spreading them out evenly.
Sprinkle the chopped parsley over the onions for added freshness and flavor.
Close each sandwich by placing the remaining slices of bread on top, spread-side facing the onions.
Cut the sandwiches in half, if desired, and serve warm or at room temperature.
Nutrition Facts
Calories |
565 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 31.1 g | 40% | |
| Saturated Fat | 13.5 g | 68% | |
| Polyunsaturated Fat | 0.0 g | ||
| Cholesterol | 57 mg | 19% | |
| Sodium | 1323 mg | 58% | |
| Total Carbohydrate | 55.7 g | 20% | |
| Dietary Fiber | 3.1 g | 11% | |
| Total Sugars | 4.4 g | ||
| Protein | 14.0 g | 28% | |
| Vitamin D | 0.3 mcg | 1% | |
| Calcium | 184 mg | 14% | |
| Iron | 2.9 mg | 16% | |
| Potassium | 201 mg | 4% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
