This Crock Pot Beef Sirloin Steak is a juicy and flavorful recipe, which uses top sirloin steak and Worcestershire sauce. It’s a classic, foolproof recipe, ready in about 4 hours and 50 minutes.
Crock Pot Beef Sirloin Steak Ingredients
- 1 beef top sirloin steak (1-1/2 pounds)
- 1 medium onion, cut into 1-inch chunks
- 1 medium green pepper, cut into 1-inch chunks
- 1 can (14.5 oz) reduced-sodium beef broth
- 1/4 cup Worcestershire sauce
- 1/4 teaspoon dill weed
- 1/4 teaspoon dried thyme
- 1/4 teaspoon pepper
- Dash crushed red pepper flakes
- 2 tablespoons cornstarch
- 2 tablespoons cold water
How To Make Crock Pot Beef Sirloin Steak
- Brown the Beef:
In a large nonstick skillet, sear the sirloin steak on both sides until browned. - Add Vegetables to Crock Pot:
Place the chopped onion and green pepper in the bottom of a 3-quart slow cooker. Set the browned beef on top. - Mix and Pour the Sauce:
In a bowl, combine the beef broth, Worcestershire sauce, dill weed, thyme, pepper, and red pepper flakes. Pour over the beef in the slow cooker. - Cook the Steak:
Cover and cook on high for 3–4 hours, or until the beef reaches your desired doneness and the vegetables are crisp-tender. - Thicken the Sauce:
Remove the beef and keep warm. In a small bowl, stir together cornstarch and cold water until smooth. Stir the mixture into the cooking liquid in the crock pot. - Finish and Serve:
Cover and cook on high for about 30 minutes until the sauce slightly thickens. Return the beef to the pot to heat through before serving.

Recipe Tips
- What cut of beef works best?
Top sirloin is ideal, but flank steak or flat iron steak are great alternatives. - Can I cook this on low instead of high?
Yes, cook on low for 6–7 hours for more tender results. - How to thicken crock pot sauce:
Use a slurry of cornstarch and cold water, and let it cook uncovered for 30 minutes to thicken. - Do I need to sear the beef?
Searing adds flavor and seals in juices, but you can skip it for convenience. - What veggies can I add?
Try mushrooms, carrots, or baby potatoes for extra heartiness.
What To Serve With Beef Sirloin Steak
This savory steak pairs well with a variety of sides, such as:
- Mashed potatoes
- Steamed green beans
- Rice pilaf
- Roasted carrots
- Crusty bread
How To Store Beef Sirloin Steak
Refrigerate:
Store leftovers in an airtight container for up to 4 days.
Freeze:
Freeze cooked steak and sauce in airtight containers for up to 2 months. Thaw overnight before reheating.
Beef Sirloin Steak Nutrition Facts
- Calories: 199
- Fat: 6g
- Saturated Fat: 2g
- Cholesterol: 68mg
- Sodium: 305mg
- Carbohydrates: 8g
- Fiber: 1g
- Sugar: 2g
- Protein: 26g
Nutrition information is estimated and may vary based on ingredients and cooking methods used.
FAQs
Can I slice the beef before slow cooking?
Yes, slicing before cooking allows faster cook time and more flavor absorption.
What if my sauce is too thin?
Add more cornstarch slurry and cook a bit longer until thickened to your liking.
Can I use fresh herbs instead of dried?
Yes, just double the amount of fresh herbs to match the flavor.
How do I avoid overcooked vegetables?
Add them halfway through cooking or use larger chunks for better texture.
What’s the best way to reheat leftovers?
Reheat gently on the stove or in the microwave with a splash of broth to keep it moist.
Try More Recipes:
Crock Pot Beef Sirloin Steak
Course: DinnerCuisine: AmericanDifficulty: Easy6
servings20
minutes4
hours30
minutes199
kcalA savory, slow-cooked steak dish with tender sirloin and flavorful vegetables in a rich broth-based sauce.
Ingredients
1 beef top sirloin steak (1-1/2 pounds)
1 medium onion, cut into 1-inch chunks
1 medium green pepper, cut into 1-inch chunks
1 can (14.5 oz) reduced-sodium beef broth
1/4 cup Worcestershire sauce
1/4 teaspoon dill weed
1/4 teaspoon dried thyme
1/4 teaspoon pepper
Dash crushed red pepper flakes
2 tablespoons cornstarch
2 tablespoons cold water
Directions
- Brown steak on both sides in a nonstick skillet.
- Place onion and green pepper in a 3-quart slow cooker. Top with beef.
- Combine broth, Worcestershire, dill, thyme, pepper, and red pepper flakes. Pour over beef.
- Cover and cook on high for 3–4 hours, until beef is done and veggies are tender.
- Remove beef. Mix cornstarch with cold water and stir into cooking juices.
- Cover and cook on high for 30 minutes until thickened. Return beef to pot and heat through.
