How to make nachos with Italian sausage

Ingredients: - Olive oil 15g - Italian sausage (cuaracio) 80g - 10 Cherry tomatoes - Tortilla chips 100g - Parmesan 40g Dressing: - Sour cream 90g - Chives 2g - Chili powder 1g - Olive oil 10g - Salt - Grated cheese 20g