Paprika-meatball and bean soup

Ingredients (4 servings) 250g beef mince 1 tablespoon paprika 1 garlic clove, crushed 1 tablespoon olive oil 1 brown onion, finely chopped 1 carrot, peeled, finely chopped 1 celery stick, finely chopped 1 zucchini, trimmed, finely chopped 2 x 400g cans diced tomatoes 4 cups (1 litre) chicken stock 1 x 400g can beans of…