Brisket Bowls

Name: Brisket Bowls
Ingredients: One 5-pound beef brisket, well-trimmed (no more than 1/8 inch of fat on top); Salt and freshly ground black pepper; 1/4 cup olive or vegetable oil; 4 cloves garlic, chopped; 2 to 3 stalks celery, chopped; 2 carrots, peeled and chopped; 2 red chiles, such as Fresno or Thai, seeded and chopped; 1 large or 2 medium onions, chopped; One 1-inch piece ginger root, peeled and grated; 2 tablespoons tomato paste; 3 cups beef stock; 1/2 cup tamari; 2 tablespoons mirin; 2 tablespoons rice wine vinegar; 2 3/4 cups chicken stock; 2 tablespoons butter; 1 1/2 cups basmati rice; Salt; 1 cup baby spinach, packed; 1/2 cup fresh cilantro leaves, packed; 1 lime, zested and rserved; Sliced scallions; Toasted sesame oil; Toasted sesame seeds; Sriracha or other hot sauce