Ravioli Lasagne with Rocket Salad

Name: Ravioli Lasagne with Rocket Salad
Prep time: 40 min
Cook time: 45 min
Total time: 45 min
Yield: 4 portions
Ingredients: water; 2 tsp fine sea salt; 100 g Cheddar cheese; 100 g mozzarella; ½ Tbsp balsamic vinegar; 50 g extra virgin olive oil; 2 pinches ground black pepper; 3 garlic cloves; 100 g onions; 400 g lean beef mince; 400 g tinned chopped tomatoes; 1 tsp dried mixed herbs; 1 tsp caster sugar; 500 g cheese-filled fresh ravioli; 400 g frozen spinach; 150 g rocket leaves; ½ red onion; Parmesan cheese