Preheat oven to 180C (350F)
Cook pasta according to the package instructions
In the Thermomix, chop onion and garlic for 3 seconds | Speed 5
Scrape down sides, add oil and sauté with the measuring cup (MC) off for 3 minutes | 100C | Speed 1
Put sausages in lower tray of varoma and put the lid on
Add diced tomatoes, tomato paste and herbs into the Thermomix bowl, close lid and put Varoma on top
Cook sauce and sausages for 20 minutes | Varoma | Speed 2
Remove Varoma and leave sausages to cool slightly
Purée sauce for 20 seconds – slowly going from Speed 1 to Speed 7
Cut sausages into 1.5cm pieces and add to the sauce
Add butterfly to the Thermomix bowl and add drained pasta
Mix for 10 seconds | Reverse | Speed 1
Pour pasta and sauce into a square roasting dish (about 24cm x 24cm) and sprinkle with cheese
Bake in the oven for about 20-25 minutes, until the cheese is melted and slightly browned