Roasted vegetable hash recipe on Second Nature

Name: Roasted vegetable hash recipe on Second Nature
Cuisine: European
Ingredients: extra virgin olive oil; butter; mixed roasted vegetables, finely diced; brown onion, diced; 2 cloves; garlic, minced (if not already in your roasted vegetables); 1 sprig; fresh rosemary, de-stemmed and roughly chopped; leftover stuffing or 4 sausages (meat removed from the skin, cooked); eggs