In a medium pan heat oil over medium heat, add onion and cook until translucent about 3-5 min. add garlic and cook for an additional 2 min. To the same pan add beans, chipotles, oregano and water. Combine all flavors.
Carefully add mixture in a blender bowl and blend until well combined. Add back to the same pan and simmer for a few minutes until desired consistency. Season to taste with Adobo.
Warm tortillas by following package instructions. Using tongs, coat tortillas with the bean mixtures folding them over onto the plate top with more bean mixture and garnish with preferred garnishes.