Step 1

Boil Vegetables:Boil potatoes in salted water for 10-15 minutes until tender. Drain and let cool.

Step 2

Boil carrots and green peas until tender. Drain and cool.

Step 3

Mix Ingredients:In a large bowl, combine potatoes, carrots, peas, bell pepper, and onion.

Step 4

Add mayonnaise, mustard, and vinegar. Stir until well coated.

Step 5

Season with salt and pepper to taste.

Step 6

Chill:Refrigerate for at least 1-2 hours before serving.