Dijon Herb Lean Beef Slow Cooker Tomato Spinach Soup
When you want a deeply savory, nourishing meal without hovering over the stove, this combination of lean beef sirloin, crushed tomatoes, and dried thyme is remarkably dependable. The slow cooker gently braises the diced beef until it is tender, while a spoonful of Dijon mustard melts into the broth to provide depth and a subtle, pleasant tang. Fresh baby spinach is stirred in right at the end, wilting instantly in the hot broth to add color and fresh texture without losing its vibrant green quality. It is a clean, comforting bowl that feels complete and satisfying.
Why this one works
- Lean sirloin slowly braises into fork-tender pieces without feeling heavy.
- Dijon mustard dissolves into the tomato-beef base to provide subtle savory tang.
- Minimal prep time lets the slow cooker do all the heavy lifting during the day.
- Adding baby spinach in the last minutes keeps its bright color and tender texture.
What you’ll need
- 1 lb (450g) lean beef sirloin, diced Cut the sirloin into uniform bite-sized pieces so they cook evenly throughout the low simmer.
- 2 cups (480ml) crushed tomatoes Provides rich body and gentle acidity to form the foundation of the soup.
- 3 cups (720ml) beef broth Adds savory depth and creates a spoonable, balanced consistency.
- 2 cups (60g) fresh baby spinach Tender leaves wilt quickly when stirred into hot soup right before serving.
- 1 tbsp (15g) Dijon mustard Blends into the broth to offer a sharp, savory undertone that rounds out the tomato base.
- 1 tsp (2g) dried thyme Infuses an earthy, herbal warmth into the simmering broth over the hours.
TRY THIS NEXT: If these flavors sound good to you, Smoky Paprika Lean Beef Slow Cooker Tomato Spinach Soup is a natural one to save for next time.
What to have nearby
- Slow cooker
- Chef's knife and cutting board
- Measuring cups and spoons
- Ladle
Step-by-step instructions
Building this soup takes only a few minutes at the cutting board before the slow cooker takes over on low heat.
- 1Step 1
Place diced beef, tomatoes, broth, mustard, and thyme into the slow cooker.
- 2Step 2
Stir well to incorporate the Dijon mustard into the liquid base.
- 3Step 3
Cover and cook on low for 6 hours until the beef is tender.
- 4Step 4
Stir in fresh baby spinach during the final 10 minutes until wilted.
- 5Step 5
Serve hot in bowls.
ALSO GOOD: If these flavors sound good to you, Tomato Herb Lean Beef Slow Cooker Tomato Spinach Soup is a natural one to save for next time.
A few things worth knowing
- Stir thoroughly when combining the broth, tomatoes, and Dijon so the mustard disperses evenly rather than clumping.
- Keep the lid closed throughout the 6-hour cook on low to maintain consistent steam and heat for tender sirloin.
- Wait until the final 10 minutes to add the spinach so it wilts gently without losing its bright color.
Ways to make it your own
- Garnish bowls with a light sprinkle of freshly cracked black pepper.
- Serve over a base of cooked brown rice or quinoa for a heartier presentation.
Serving suggestions
Ladle this piping hot soup directly into wide bowls. It pairs naturally alongside toasted artisan bread, warm dinner rolls, or a crisp mixed garden salad.
Storage & reheating
Let leftovers cool slightly before transferring them to an airtight container for refrigerated storage. Reheat gently in a small pot over medium-low heat until steaming.
Nutrition notes
Nutrition is provided as a general estimate for the listed recipe. Brands, exact portions, and ingredient swaps can change the numbers.
Quick recipe answers
Can I add the spinach earlier in the cooking process?+
It is best to wait for the final 10 minutes. Baby spinach leaves are delicate and will become overly soft if cooked for several hours.
Why use Dijon mustard in a tomato beef soup?+
A single tablespoon of Dijon blends into the broth, adding a rounded savory tang that balances the natural sweetness and acidity of the tomatoes.
A simple assembly and a hands-off low simmer make this beef and spinach soup a dependable, cozy bowl for any quiet evening.
Dijon Herb Lean Beef Slow Cooker Tomato Spinach Soup
Tender lean beef sirloin simmers with crushed tomatoes, savory broth, Dijon mustard, and thyme, finished with wilted baby spinach.
Ingredients
- 1 lb (450g) lean beef sirloin, diced
- 2 cups (480ml) crushed tomatoes
- 3 cups (720ml) beef broth
- 2 cups (60g) fresh baby spinach
- 1 tbsp (15g) Dijon mustard
- 1 tsp (2g) dried thyme
Instructions
- Place diced beef, tomatoes, broth, mustard, and thyme into the slow cooker.
- Stir well to incorporate the Dijon mustard into the liquid base.
- Cover and cook on low for 6 hours until the beef is tender.
- Stir in fresh baby spinach during the final 10 minutes until wilted.
- Serve hot in bowls.
Nutrition
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