Steamed aubergine and ricotta lasagne

Name: Steamed aubergine and ricotta lasagne
Prep time: 35 min
Cook time: 1 h 25 min
Total time: 1 h 25 min
Yield: 3 portions
Ingredients: 50 g Parmesan cheese; 5 - 10 g fresh parsley; 1 - 2 pinches freshly ground pepper; 1100 g water; 2 tsp salt; 160 g dried lasagne pasta sheets; 300 g aubergines; 1 garlic clove; 50 g onions; 50 g carrots; 30 g celery stalk; 30 g extra virgin olive oil; 500 g canned crushed tomatoes; 250 g ricotta cheese