Stuffed Shells with Spinach Cauliflower

Name: Stuffed Shells with Spinach Cauliflower
Cuisine: European, Italian, Mediterranean
Ingredients: 400 g pasta shells (ca 60-70 shells); ca. 3 tbsp olive oil; 1 handful fresh basil leaves; 650 g frozen cauliflower florets (defrosted); 3 handful fresh spinach; 1 medium onion (chopped); 3 cloves of garlic (chopped); 1 tsp miso paste; ca. 1 1/3 cups oat milk; 1 tsp salt; pinch of pepper; 2 1/2 tbsp starch (I like to use potato starch); 1 tsp dried basil; 600 ml sieved tomatoes; 200 ml soya cuisine (vegan single cream); 1 tsp dried oregano; 2 tsp. paprika; salt and pepper to taste; 1 medium Onion (chopped); 3 cloves of garlic (minced)