Summer Salad

Ingredients

• 1 head lettuce
• 2 tomatoes
• 2 boiled potatoes
• 3 oz. (1/2 c.) cooked green peas
• 1 hard-boiled egg, chopped
• 3 to 4 Tbsp. oil
• 1 1/2 to 2 Tbsp. vinegar
• 2 1/2 tsp. to 1 Tbsp. mustard
• 1 tsp. salt
• 1 tsp. sugar
• pinch of salt and pepper