Pat the beef dry with paper towels, then season with salt and pepper. Heat 1 tablespoon of oil in large nonstick skillet over medium-high heat until just smoking. Add half of the beef and brown on all sides, about 8 minutes. Transfer to the slow cooker insert and repeat with the remaining beef (you shouldn't need more oil).
Add 1 tablespoon of oil, onions, and 1/4 teaspoon salt to empty skillet and cook until golden brown, about 6 minutes. Add the tomato paste and cook, stirring well, for 2 minutes. Add the broth and soy sauce, bring to simmer, and transfer to the slow-cooker insert.
Toss the carrots, parsnips, potatoes, 1 teaspoon thyme, and remaining 1 tablespoon of oil in a bowl. Season with salt and pepper. Wrap the vegetables in a foil packet that will fit in slow the cooker. Stir the bay leaves and tapioca into the slow-cooker insert; set the vegetable packet on top of the beef.
Set the slow cooker to high, cover, and cook for 6 to 7 hours. (Or cook on low for 10 to 11 hours.)
Carefully open the foil-wrapped vegetable packet (watch for steam) and scrape the vegetables and juices into the stew. Discard the foil. Add the remaining 1 teaspoon thyme and peas and let stand until heated through. Season with salt and pepper to taste and serve.
Notes
*If you are preparing this recipe asĀ gluten-free, just be sure to use brands of broth and soy sauce that are known to be GF
*If you choose to cook on low for 10 to 11 hours, cut the meat into larger, 1 1/2 to 2 inch pieces to help them retain their texture.
*The tapioca thickens the stew without giving it a starchy texture.
*To make a foil packet, place the vegetables on one side of a large piece of heavy-duty foil. Fold the foil over, shaping it into a packet that will fit into your slow cooker, then crimp to seal the edges.