Cowboy-Style Beef and Vegetable Ragout

INGREDIENTS

1 cup

unsalted chicken stock, divided

1 tbsp

cornstarch

2 tbsp

olive oil

1 lb

90% lean ground sirloin

1 tbsp

reduced-sodium Worcestershire sauce

1 tsp

black pepper, divided

3/4 tsp

kosher salt, divided

1/2 tsp

garlic powder

1/2 tsp

onion powder

sliced green onions, white and green parts divided

1/2 cup

frozen pearl onions, thawed

3 cups

chopped tomato, divided

1 tbsp

unsalted ketchup

1 tbsp

chopped fresh chives