Sandwich with White Bean Hummus and Grilled Vegetables

For hummus:

• 400 g white beans (canned)
• 1-2 tbsp olive oil
• 2 tbsp lemon juice
• ¹⁄₂ tsp cumin
• ¹⁄₂ tsp cayenne pepper
• 4 tbsp water
• salt (to taste)
• 2-3 garlic cloves

For sandwich:

• 8 slices high protein bread
• 1 aubergine (thinly sliced lengthwise)
• 1 courgette (thinly slice lengthwised)
• 1 bell pepper (thinly sliced lengthwise)
• 1 tbsp olive oil
• salt and pepper (to taste)
• 1-2 garlic cloves