Make as little or as much as you want. You will always have this favorite Cajun cooking combo ready for your favorite recipes.
1 large yellow onion, diced (about 2 cups)
1 large green bell pepper, seeded and diced (about 1 cup)
2 stalks celery, diced (about 1 cup)
Photo credit: author/85fa7f trekkyandy on VisualHunt / CC BY-SA
Find it online: https://simplygreatrecipes.com/trinity/