Preheat oven to 300ºF.
In a Dutch oven, heat a drizzle of oil over medium-high heat. Add sausage, brown and remove to plate.
Reduce heat a bit and add 1/4 cup oil and about 4 tablespoons flour to the pot. Stir 10-12 minutes until golden and fragrant. Add chopped vegetables, chili pepper, garlic, bay, dried spices, herb bundle, salt and pepper, and stir 7-8 minutes to soften. Add stock and a couple of tablespoons hot sauce; simmer to thicken. Add cooked chicken and sausage back to pot.
Warm chips in oven on baking sheets.
Heat a skillet over high heat with a thin layer of vegetable oil. Season shrimp with seafood seasoning and cook in the hot pan 2-3 minutes to cook through.