Open the cans of corn and beans. Drain well in a colander and add to a large mixing bowl.
To the mixing bowl, also add the Rotel, salsa, lemon juice, and chili powder.
Toss all the ingredients together lightly to thoroughly combine.
Cover and refrigerate until you are ready to serve.
Right before serving, you may also add a diced ripe avocado and cilantro for additional flavor.
You may need to add more salsa to the bowl if the mixture is too dry.