Shrimp Rolls - Martin's Famous Potato Rolls and Bread

Ingredients

• 1/2 lb medium shrimp, peeled and deveined
• 2 Lemons
• 2 Stalks celery, plus leaves
• 3 Heaping spoonfulls mayonnaise
• 1/2 Tsp celery salt
• 1/2 Tsp Old Bay (or more to taste)
• Salt
• Martin's Long Potato Rolls
• Salted butter
• 1 Tsp whole grain dijon (optional)