01 -
Combine dry Italian dressing mix, ranch dressing mix, and brown gravy mix with water in a medium bowl. Whisk thoroughly until smooth and lump-free.
02 -
Heat a large skillet over medium heat and add vegetable oil. Sear the chuck roast on all sides until a deep golden brown crust forms, approximately 3-4 minutes per side.
03 -
Place the seared or raw chuck roast into the slow cooker. Pour the prepared seasoning mixture evenly over the meat, ensuring it is well coated without stirring.
04 -
Cover the slow cooker and cook on low heat for 8 hours to achieve tender, juicy meat with a rich, thickened gravy.
05 -
Transfer the cooked roast to a serving platter and spoon the thickened gravy over the meat. Ideal accompaniments include mashed potatoes, roasted vegetables, or fresh bread.