Season the beef: Pat the beef dry. Season generously with salt, pepper, and paprika.
Sear for flavor: Heat oil in a large skillet over medium-high.
Brown the beef in batches until deep golden on two sides. Don’t overcrowd the pan.
Soften aromatics: In the same pan, add onion and a pinch of salt. Cook 3–4 minutes, scraping up browned bits.
Stir in garlic for 30 seconds.
Build the braising liquid: Whisk broth, Worcestershire, soy sauce, and tomato paste. Pour into the skillet to deglaze, then transfer everything to a slow cooker.
Season and cook: Add thyme and bay leaf. Cover and cook on Low for 6–8 hours or High for 3–4 hours, until the beef is fork-tender.
Thicken the gravy: Stir in the cornstarch slurry.
Cover and cook 10–15 minutes more, until the sauce lightly coats a spoon. Adjust salt and pepper.
Make the rice: While the gravy thickens, cook rice according to package directions. Aim for fluffy, individual grains.
Serve: Spoon beef tips and gravy over rice.
Garnish with parsley if you like.