This is simply the best Slow Cooker Marinara! It is perfect for an easy meal at the end of a busy day. You can also freeze it to have it on hand when you need it.
Heat a skillet to medium high heat. Add avocado oil and allow to heat for a minute. Add onion and cook for 8 to 10 minutes. Add the sweetener, Italian seasoning, red pepper flakes, salt, and pepper.
Reduce heat to low and cook for 10 more minutes. Add garlic and cook for one more minute.
Transfer to a slow cooker and stir in fire roasted tomatoes, tomato paste and balsamic vinegar. Cook for 2 hours on high or 4 hours on low.
Calories: 67kcal | Carbohydrates: 13g | Protein: 3g | Fat: 2g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Sodium: 608mg | Potassium: 471mg | Fiber: 3g | Sugar: 8g | Vitamin A: 401IU | Vitamin C: 14mg | Calcium: 59mg | Iron: 2mg