Season the four pieces of chicken with chili powder, cumin, garlic powder, and salt and pepper to taste.
In a large high sided skillet, heat the olive oil over medium-high heat.
Add the chicken and cook evenly on both sides. Once completely cooked through, remove the chicken and set aside.
Add the Rotel to the skillet.
Add the heavy whipping cream, then reduce the heat to medium.
Cook the mixture, being careful not to let it boil, until it thickens.
Whisk in the cheddar cheese and stir until completely melted.
Return the chicken to the pan, coat with the queso sauce, and serve garnished with chopped green onions if desired.