Recipes: Lightened-up bolognese sauce

Preparation:   Preparation time: 10 mins Cooking time: 1 hr 30 mins Serving: 6 Ingredients: 2 tablespoons olive oil 1 large yellow onion, finely chopped 2 large celery stalks, finely chopped 2 cloves garlic, minced 1/4 teaspoon salt 1/2 pound ground beef 1/2 pound ground turkey 3 tablespoons tomato paste...