Dinner · Part 2 of 3: Instructions
Sweet Pepper Dijon Cream Chuck Roast: Easy Crockpot Dinner Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 6
Before you start
Before you start, make sure you have a 6-quart slow cooker or larger. Pat the beef chuck roast dry with paper towels and season it generously with salt and pepper on all sides. Slice the bell peppers and onion into thick strips, about 1/2-inch wide.
In a small bowl, whisk together the sour cream, Dijon mustard, and au jus until smooth. Have all your ingredients ready to go—this recipe comes together in minutes once everything is prepped.
Ingredients at a glance (8)
- 3 1/2 lb beef chuck roast
- 2 bell peppers (red and green), sliced
- 1 large yellow onion, sliced
- 1/2 cup sour cream
- 3 tbsp whole-grain Dijon mustard
- 1 cup au jus
- 1 tsp kosher salt
- 1/2 tsp black pepper
Instructions
Build the Base
- Layer the Roast and VegetablesPlace the beef chuck roast in the center of the slow cooker insert. Season both sides with kosher salt and black pepper. Scatter the sliced bell peppers and onion over and around the roast, covering it evenly.Look for The roast should be nestled among the peppers and onions.Tip For even cooking, tuck the vegetables around the roast rather than piling them all on top.
- Add the Creamy SauceIn a small bowl, stir together the sour cream, whole-grain Dijon mustard, and au jus until smooth. Pour the mixture over the roast and vegetables, making sure to coat the top of the roast.Look for The sauce should pool around the roast, not completely submerge it.Tip If the sauce seems too thick, add a splash of beef broth, but the roast will release juices as it cooks.
At the end of this phase, the roast is seasoned and nestled in the slow cooker with the peppers and onions around it. The sour cream-Dijon-au jus sauce is poured over the top, coating the meat and vegetables. The raw beef should look well-seasoned, and the sauce should be evenly distributed, though it may not cover everything completely—that's fine, as the meat will release juices as it cooks.
Low and Slow
- Slow Cook Until TenderCover the slow cooker and cook on LOW for 8 to 10 hours, or on HIGH for 4 to 5 hours, until the roast is fork-tender and easily shreds. The internal temperature of the beef should reach at least 145°F (63°C), but for fall-apart tenderness, it will be much higher. Let it rest for 3 minutes before slicing.Look for The meat should shred effortlessly with a fork, and the sauce should be bubbling gently.Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)Tip Do not lift the lid during the first 6 hours on LOW—it releases heat and extends cooking time.
- Shred the BeefOnce the roast is tender, remove it to a cutting board and let it rest for at least 3 minutes. Then, using two forks, shred the beef into bite-sized pieces, discarding any large pieces of fat.Look for The beef should pull apart easily into long, tender strands.Tip For extra flavor, return the shredded beef to the slow cooker and stir it into the sauce before serving.
After 8-10 hours on low, the kitchen will be filled with a rich, savory aroma. When you lift the lid, you'll see the sauce bubbling gently, and the beef should be very tender, easily pierced with a fork.
The peppers and onions will have softened and darkened slightly, and the sauce will have thickened and turned a warm, caramel color. The meat should be shredding easily, and the sauce should coat a spoon nicely.
Shred and Serve
- Finish and ServeStir the shredded beef back into the sauce and vegetables in the slow cooker. Taste and adjust seasoning with salt and pepper if needed. Serve hot over steamed rice or with crusty bread, spooning extra sauce over the top.Look for The sauce should be velvety and coat the beef and vegetables.Tip If the sauce is too thin, simmer with the lid off for 15 minutes to reduce; if too thick, add a splash of beef broth.
The shredded beef is mixed back into the sauce, and the dish is ready to serve. The beef should be in tender, juicy strands, and the sauce should be velvety and clinging to the meat. The peppers and onions are soft and sweet, and the overall dish looks hearty and comforting. Serve immediately over rice or with bread, garnished with fresh herbs if desired.
Common mistakes
One common mistake is lifting the lid too often during cooking, which lets out heat and extends the cooking time. Another is not seasoning the roast well enough—be generous with salt and pepper, as the flavors mellow during long cooking.
Also, avoid using a lean roast like sirloin, which can dry out; chuck roast is best. Finally, don't skip the resting time after shredding—this allows the juices to redistribute, making the meat even more succulent.
How to tell it’s done
The roast is done when it is fork-tender and easily shreds with two forks. The internal temperature should reach at least 145°F (63°C) for food safety, but for this slow-cooked dish, it will typically be much higher, often around 195-205°F (90-96°C), which is ideal for shredding.
If the meat is still tough, continue cooking for another 30-60 minutes. The sauce should be thickened and glossy, and the peppers and onions should be soft and sweet.
- Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest
Up next · Part 3 of 3
4 variations · storage & make-ahead · 5 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)