Heat a medium pot over medium-low heat. Add the frozen chicken and a splash of water. Let the chicken warm up in the pot, breaking up with a wooden spoon, until it's defrosted, 5 to 7 minutes.
Add the olive oil and taco seasoning and stir to coat.
Add the enchilada sauce and beans. Simmer, adjusting the heat as needed and stirring occasionally, until thickened, about 10 minutes. (The consistency should be giving extra saucy sloppy joes.)
Transfer the dip to an appetizer dish or dinner plate (depends on how you're serving this), and top with shredded cheese, cilantro, scallions, and a squeeze of lime.
Notes
1 lb of raw chicken will yield the 12 oz of cooked chicken needed for this recipe.