Preheat oven to 400F.
Place a medium skillet over medium-high heat with 2 turns of the pan of EVOO, about 2 tablespoons. Add the onion, bell pepper and garlic to the pan, and cook until the veggies are tender, about 5 minutes. Add the spices to the pan and cook another minute. Season the veggies with salt and pepper, and transfer to a bowl to cool.
Spread the crushed chips out on a plate or in a pie dish.
When the veggies are cool, add the beans and meat to the bowl, season with salt and pepper and combine. Shape the mixture into two-bite-sized balls and roll each of them in the crushed chips. Arrange the meatball bites on a baking sheet, drizzle lightly with EVOO and bake until golden brown and cooked through, about 15 minutes.
While the meatballs are baking, place a pot over medium heat with the butter. When the butter has melted, sprinkle the flour over top and cook about 1 minute. Whisk the stock and milk into the butter-flour mixture and bring up to a bubble. Season with salt and pepper, and simmer until thickened, about 2 minutes. Remove pot from heat and whisk in the cheese until melted.
Serve the chili meatball bites with the cheesy dipper alongside.