Add the sweet potato, olive oil, ½ teaspoon salt, and garlic powder to a large bowl and toss to combine.
Spread the sweet potatoes on a baking sheet in a single layer and cook for 20 minutes.
In a small bowl combine the tahini, maple syrup, remaining salt, Dijon, lemon, and 3 tablespoons water.
Cut off any stem piece that protrudes beyond the collard leaves. Turn each collard leaf upside down with the stem facing up. Using a paring knife, shave as much of the rounded stem as possible creating a flat surface. Repeat with the rest of the leaves.
Add about an inch of water to a large skillet and bring it to a boil. Place one leaf at a time into the boiling water for about 10 seconds. Place them on a clean dish towel to dry.
Mash the avocados in a medium bowl.
Lay out a collard leaf horizontally in front of you. Leaving a 3-inch border, add a layer of mashed avocado to the leaf, then follow with quinoa, sweet potatoes, cranberry sauce, and tahini dressing.
Fold the right and left sides in, then wrap it up like a burrito. Cut in half.