Mist the crockpot lightly with nonstick cooking spray.
Place a 10-inch nonstick skillet over medium-high heat; cook the ground beef, diced onions, and minced garlic until the beef loses its pink color.
Discard any excess grease from the skillet, then move the cooked mixture into the prepared crockpot.
To the crockpot, add the kidney beans, petite diced tomatoes, diced tomatoes with chilies, frozen corn, kosher salt, black pepper, and chipotle powder. Stir until everything is evenly combined.
Take out 1½ cups of the meat mixture and set it aside.
Arrange the sliced Yukon Gold potatoes in the crockpot in layers or wedges. Distribute the reserved meat mixture evenly on top.
Put the lid on and cook on high for 5 hours, or on low for 7 hours.
Just before serving, scatter the shredded Colby and Monterey Jack cheese over the top. Replace the lid and allow it to melt fully. Serve hot and enjoy!