Asparagus & Cheddar Quiche - Alberta Milk

Ingredients

• 1 frozen 9-inch (23cm) deep dish pie pastry shell
• 1 tsp (5 ml) Dijon mustard
• 9 spears fresh asparagus, trimmed
• 2 tbsp (30 ml) butter
• 1 shallot, finely chopped
• 1/2 tsp (2 ml) salt, divided
• 1/2 tsp (2 ml) pepper, divided
• 1/4 cup (60 ml) chopped fresh basil
• 1 cup (250 ml) shredded old cheddar, divided
• 4 large eggs
• 1 cup (250 ml) 2% milk