Add diced tomatoes and coconut milk to a blender and blend until smooth. Heat a large stockpot over medium-high heat. Add coconut oil and saute onions until translucent. Add ground beef and cook until brown. Drain fat. Stir in minced garlic and salt. Pour in tomato/coconut milk mixture and chicken broth. Bring to a boil and then reduce heat to simmer 10-15 minutes. Mix in fresh basil. Serve and enjoy!
Let soup cool completely. Pour into freezer bag, lay flat and freeze. To serve: Thaw. Reheat in microwave or on stove.