Heat the olive oil in a large skillet or Dutch oven over medium heat. Add the chopped onion, garlic, carrots, and celery. Cook, stirring occasionally, until the vegetables are softened,...
Prepare the Marinade: In a bowl, whisk together the soy sauce, olive oil, Worcestershire sauce, minced garlic, Dijon mustard, brown sugar, black pepper, and smoked paprika (if using). Make sure...