Bake the chicken nuggets according to the package instructions.
In a skillet over medium-high heat, add the cooking oil. Once the oil is hot, add the red bell peppers, onions, and pineapple chunks to the pan. Cook for about 2 minutes.
Stir in the sweet chili sauce and pineapple juice. Bring the mixture to a boil.
Add the chicken nuggets to the pan. Mix until all ingredients are well covered and heated through.