Finely dice the chicken thighs, potato, onion, and bell pepper into small, uniform pieces.
Heat the avocado oil in a small non-stick skillet over medium heat.
Add the diced chicken and potatoes to the skillet, sautéing until the chicken is browned and the potatoes are just tender.
Stir in the onion, bell pepper, and jalapeño, cooking for another 2-3 minutes until the vegetables soften.
Add the tomato puree, cumin, smoked paprika, sea salt, and black pepper to the pan, stirring to coat the ingredients.
Reduce heat to low and simmer for 4-5 minutes until the sauce has thickened and the flavors are well combined.
In a separate small dish, warm the refried beans until smooth and creamy.
Spread the warm refried beans into the base of a small bowl and top with the chicken tinga and potato mixture.
Drizzle with fresh lime juice just before serving.