01 -
Preheat the oven to 400°F (200°C).
02 -
If using frozen chicken tenders, let them sit at room temperature for about 5 minutes to soften for slicing, if desired.
03 -
Spread the mashed potatoes evenly across the bottom of a 9 x 13-inch casserole dish. Warm the mashed potatoes beforehand if chilled.
04 -
Layer the corn kernels and grated cheddar cheese evenly over the mashed potatoes.
05 -
Slice the chicken tenders into pieces of desired size and distribute them evenly across the casserole dish.
06 -
Bake the casserole uncovered for 20 minutes if using frozen chicken tenders, or for 15 minutes if using homemade chicken tenders.
07 -
While the casserole bakes, heat the gravy on the stovetop according to the package instructions or your recipe.
08 -
Drizzle the prepared gravy over the baked casserole and serve immediately.