Pasta ratatouille bake

Name: Pasta ratatouille bake
Cuisine: European, Italian, Mediterranean
Ingredients: 200g macaroni; 1 tbsp olive oil; 2 medium onions, chopped; 1 garlic clove, crushed; 1 tsp dried oregano (or fresh); 1 tsp dried basil (or fresh); 4 tomatoes, chopped; 4 courgettes, sliced; 200g green beans (fresh, frozen or canned); 125ml reduced-salt vegetable or chicken stock; 25g vegetarian hard cheese, grated; 1 pinch ground black pepper