Spicy chickpea burger

Ingredients

• 1 cup cooked chickpeas
• 1 cup raw walnuts
• 1/2 tbsp vegetable oil (plus more for greasing)
• 1/2 cup shallots
• 1 tbsp ground paprika
• 3 tsp chili powder
• 1 tbsp ground cumin
• 1 cup cooked brown rice
• 1 oz cilantro
• 3/4 cup panko bread crumbs
• 1 tbsp tomato paste
• 1/2 cup vegan mayonnaise
• 1/4 cup vegan ketchup
• hot sauce to taste
• salt
• pepper
• lettuce for topping
• tomato for topping
• cucumber for topping
• vegan burger buns for serving