Tomatoes tomatoes everywhere! "let's make some green tomato relish"

Ingredients

• 12 large green Tomatoes (cored)
• 4 - green bell peppers, seeded 4 - medium yellow onions
• 1 - red bell pepper, seeded
• 1 - tablespoon + 2 teaspoons yellow mustard seed
• 1 - tablespoon celery seed
• 2 - cups cider vinegar
• 2 - cups granulated sugar
• 1 tablespoon + 2 teaspoons kosher salt