Vegan Meal Prep Burrito Bowl

Name: Vegan Meal Prep Burrito Bowl
Ingredients: 4 sweet potatoes (medium) (~ 800g); 2 bell peppers (~ 500g); 1 cup rice (~ 200g); 1 tbsp paprika powder; 1 tbsp cumin; 1 tsp cayenne pepper; salt and pepper; 3 cups black beans, cooked (~ 500g); 1 red onion, small; 1 clove of garlic; 1 tbsp tomato paste; 1 can pureed/crushed tomatoes (~ 250g); 1/2 tbsp paprika powder; 1/2 tsp cumin; 2 tomatoes, large (~ 300g); 1 lime (juice); 1 spring onion; 4 tbsp tahini; 1 tbsp maple syrup (or any other liquid sweetener); 1/2 lemon (juice)