Slow Cooker Beef and Broccoli (Tender, Flavorful and Easy Weeknight Dinner)
There are takeout favorites you crave… and then there’s this slow cooker beef and broccoli that brings those same bold flavors right into your kitchen with even better texture and freshness. This easy homemade version delivers tender slices of beef coated in a rich, glossy sauce, paired with vibrant, crisp-tender broccoli.
What makes this recipe stand out is how effortlessly it comes together. The slow cooker does all the work, allowing the beef to become incredibly soft while soaking up a balanced sweet and savory sauce. The broccoli is added near the end, keeping its color and bite, which creates the perfect contrast to the tender meat.
Perfect for busy weeknights, meal prep, or a comforting family dinner, this dish is simple, reliable, and packed with flavor.
Why You’ll Love This Recipe
- Easy slow cooker dinner with minimal prep
- Tender, melt-in-your-mouth beef
- Balanced sweet and savory sauce
- Perfect for family-friendly meals
- Great for meal prep and leftovers
- Better than takeout with simple ingredients
- Customizable flavor and texture
- One-pot meal for easy cleanup
- Works well with rice or noodles
- Beginner-friendly and consistent
Ingredients (Serves 4–6)
- 1.5 lbs flank steak, sliced thin against the grain
- 1 cup beef broth
- 1/2 cup low-sodium soy sauce
- 1/3 cup brown sugar
- 1 tablespoon sesame oil
- 3 cloves garlic, minced
- 4 cups fresh broccoli florets
Equipment Needed
- Slow cooker
- Mixing bowl
- Whisk
- Knife and cutting board
Step-by-Step Instructions
1. Prepare the Sauce
In a bowl, whisk together the beef broth, soy sauce, brown sugar, sesame oil, and minced garlic until the sugar dissolves and the mixture is smooth.
2. Add the Beef
Place the sliced flank steak into the slow cooker. Pour the prepared sauce over the beef and stir gently to coat evenly.
3. Cook
Cover and cook on low for 4 to 5 hours, until the beef becomes tender and infused with flavor.
4. Add the Broccoli
About 45 minutes before the cooking time is complete, add the broccoli florets. Stir gently and continue cooking until the broccoli is tender but still bright and slightly crisp.
5. Optional Thickening
For a thicker sauce, mix 1 teaspoon cornstarch with a small amount of water and stir it into the slow cooker during the last 10 minutes of cooking.
6. Serve
Serve hot over steamed rice or noodles. Garnish with sesame seeds if desired.
Pro Tips for Best Results
- Slice the steak thinly against the grain for tenderness
- Partially freeze the meat before slicing for easier cutting
- Use low-sodium soy sauce to control salt levels
- Do not overcook the broccoli to maintain texture
- Add cornstarch at the end for a glossy sauce
Variations and Substitutions
- Use chicken instead of beef for a lighter version
- Add ginger for extra depth of flavor
- Include carrots or snap peas for more vegetables
- Use honey instead of brown sugar for a different sweetness
- Add red pepper flakes for heat
- Substitute coconut aminos for soy sauce
- Serve with cauliflower rice for a low-carb option
- Add mushrooms for a richer texture
Serving, Pairing and Storage
Serve this beef and broccoli over steamed white rice, brown rice, or noodles for a complete meal. It also pairs well with simple side dishes like stir-fried vegetables or a light salad.
Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat in a skillet or microwave until warmed through. This dish also freezes well for up to 2 months, making it ideal for meal prep.
Frequently Asked Questions
Why slice the beef against the grain?
It shortens the muscle fibers, making the meat more tender.
Can I use frozen broccoli?
Yes, but add it later and adjust cooking time to prevent overcooking.
How do I thicken the sauce?
Use a cornstarch slurry near the end of cooking.
Can I cook on high instead of low?
Yes, cook on high for 2 to 3 hours, checking for tenderness.
Can I make this ahead of time?
Yes, it stores and reheats well.
Is this recipe beginner-friendly?
Yes, it requires minimal preparation and simple steps.

Slow Cooker Beef and Broccoli
Ingredients
Equipment
Method
- Mix sauce
- Add beef
- Cook
- Add broccoli
- Thicken sauce
- Serve