Make this recipe a recipe that people in that category can eat. categories: ['low_fat'], recipe: saute onion, carrot, celery and peppers in olive oil until onions are limp and transparent. add tomatoes to veg and cook for 15-20 min. puree veg in a mill or processor. add salt and cook uncovered for 1 hour, stirring often. ladle into hot jars leaving 1/4 inch head space and process in a boiling water bath for 45 minutes.

Target recipe: preheat oven to 450. cut the tomatoes in half and dump them into a roasting pan or a baking sheet with sides. chop up half an onion and a few cloves of garlic per pan, or more if you like, and dump that in too. coarsely chop some fresh basil and add that. stir this all together and spread it out evenly; crowded is fine but no more than a single layer. drizzle on some olive oil and sprinkle with salt. roast for 20 minutes or until the tomatoes collapse and the skins look browned and wrinkly. let the pan cool and then scrape everything into a blender or food processor and puree. use or freeze.