Cut the baguette in three equal pieces. Cut each piece of baguette lengthwise, into long rectangles. Place on baking sheet and smear with Avocado oil or use Misto Oil Sprayer.
In a medium bowl combine kale, mozzarella cheese, cheddar cheese and parmesan cheese. Mix well together.
Stuff each baguette with kale and three cheeses.
Bake for 5 - 10 minutes. Remove from oven, slice and serve.