Protein power lunch

Ingredients

• 1 pita whole wheat loaf
• 1 can tuna (preferably albacore)
• 1 avocado
• 1 tsp cayenne pepper
• 2 tbsp yellow mustard
• 2 tbsp olive oil mayonnaise
• 1 tsp black pepper
• 2 slice tomato
• 2 slice onion
• 3 slice cucumber