Tuna and Apple Salad in Apple Cups

Ingredients

• 2 Stemilt apples, of your choice
• 1 6-ounce can white albacore tuna (packed in water), drained
• 1 tbsp honey mustard
• 2 to 3 tbsp mayonnaise (or vegenaise)
• 1/3 cup diced celery
• 2 tbsp diced red onion
• kosher salt and ground black pepper, to taste
• 1 lemon