- Preheat oven to 425 degrees. 
- Coat prepared Brussels sprouts with a light and even layer of olive oil and spread evenly onto a baking sheet. 
- Sprinkle lightly with salt and pepper. 
- Roast in oven for 20-25 minutes, turning about halfway through. 
- Add pecans onto baking sheet in the last five minutes of roasting. 
- Continue roasting until pecans are lightly toasted and Brussels sprouts are golden brown. 
- In a small saucepan, saute garlic, ginger, and green onions in a tablespoon of olive oil until lightly browned. 
- Add chile paste, dried chiles, soy sauce, vinegar, sugar, and water to the saucepan and bring to a simmer. 
- Add cornstarch mixture and stir continuously, cooking 1-2 minutes longer until sauce thickens. 
- Pour prepared sauce over the roasted Brussels sprouts and pecans; toss to coat evenly. 
- Garnish with a few green onion slices and serve immediately.