In a large, non-stick skillet, heat the butter over medium high heat. Add the corn and season with the smoked paprika and 1/4 teaspoon of salt. Cook, stirring often, until beginning to brown a bit. Remove from heat and put in clean bowl in refrigerator to cool.
To the drained black beans, add the juice of 1/2 lime, the honey, oil, cumin and the remaining 1/4 teaspoon of salt. Mix well to combine.
In a separate small bowl, whisk together the mayonnaise, juice of one lime, cilantro and sugar.
In a large trifle bowl, place all the iceberg lettuce in an even layer on the bottom. Top the lettuce with black beans. Top the beans with shredded white-meat chicken. Top the chicken with the cooled sweet corn. Top the corn with the crumbled feta cheese. Top the feta cheese with the mayonnaise dressing. Top the dressing with the chopped green onions.
Seal the bowl with plastic wrap and refrigerate at least 1 hour before serving.