Mediterranean Beef Slow Cooker Tomato Spinach Soup

A slow cooker transforms simple pantry aromatics and cubed beef into a deeply seasoned broth with minimal hands-on effort. As the beef simmers gently over several hours with crushed tomatoes, garlic, and dried oregano, the meat yields until completely tender while enriching the entire base. Adding tender baby spinach right at the finish preserves its bright color and delicate texture without letting it overcook. Ladled steaming into wide shallow bowls, the resulting soup balances hearty braised meat with light, savory greens in every spoonful.
Why this one works
- Requires only ten minutes of initial chopping and assembly before the slow cooker takes over.
- Gentle, low-temperature simmering leaves cubed beef chuck exceptionally tender.
- Crushed tomatoes and beef broth build a savory, fragrant base scented with oregano.
- Fresh baby spinach wilts quickly at the end, providing color and texture contrast.

What you’ll need
- 1 lb (450g) lean beef chuck, cubed Cut into uniform bite-sized pieces so they soften evenly during the extended braise.
- 2 cups (500ml) crushed tomatoes Provides a thick, textured tomato base that deepens as it cooks down.
- 3 cups (75g) fresh baby spinach Hold back until the final ten minutes so the leaves wilt gently without losing their vibrant hue.
- 1 onion, diced Softens completely into the liquid during the long cook time, rounding out the savory profile.
- 2 cloves garlic, minced Mince finely to distribute aromatic flavor thoroughly through the broth.
- 4 cups (950ml) beef broth Forms the liquid base that keeps the meat submerged and moist.
- 1 tsp (5g) dried oregano Stands up well to long simmering, infusing warmth throughout the soup.
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What to have nearby
- Slow cooker (4 to 6 quart capacity)
- Chef knife and cutting board
- Liquid measuring cup
- Ladle
Step-by-step instructions
Everything except the spinach goes directly into the slow cooker insert from the start. Setting the heat to low allows the beef fibers to break down slowly over six to eight hours without scorching the tomatoes.
- 1Step 1
Place the beef cubes, diced onion, and minced garlic into the slow cooker.
- 2Step 2
Add the crushed tomatoes, beef broth, and dried oregano.
- 3Step 3
Cook on low for 6 to 8 hours until the beef is tender.
- 4Step 4
Stir in the fresh baby spinach during the last 10 minutes of cooking until wilted.
- 5Step 5
Serve hot in a wide soup bowl.
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A few things worth knowing
- Keep the slow cooker lid closed throughout the braising window to maintain consistent steam and heat.
- Check the beef chuck near the six-hour mark; it should break apart easily under the gentle pressure of a fork.
- Stir the baby spinach in thoroughly so all leaves submerge in the hot broth and soften within the ten-minute rest.
- Use wide soup bowls to allow the broth and tender chunks of beef to distribute evenly when ladled.
Ways to make it your own
- Garnish each bowl with a sprinkle of freshly ground black pepper just before bringing to the table.
- Top with a small pinch of fresh or dried herbs for added aroma at service.
Serving suggestions
Ladle hot into wide, shallow soup bowls alongside warm whole-grain rolls or thick slices of country bread. A crisp mixed green salad with a light vinaigrette rounds out the meal naturally.
Storage & reheating
Allow leftover soup to cool slightly before transferring it to airtight containers for refrigeration. Reheat gently on the stovetop over low heat until steaming hot throughout.
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 at the beginning of the cook time?+
It is best to wait until the final 10 minutes, as baby spinach cooks very quickly and will turn drab and mushy if simmered for hours.
How small should the beef chuck be cut?+
Aim for bite-sized cubes around 3/4 to 1 inch across so they become tender within the specified cooking time.
Why use the low heat setting instead of high?+
Cooking lean chuck on low for 6 to 8 hours gives connective tissues time to soften gradually, resulting in a more tender texture.
With its rich tomato broth, tender pieces of braised beef, and tender ribbons of spinach, this slow cooker meal delivers dependable comfort with almost no active kitchen time.

Mediterranean Beef Slow Cooker Tomato Spinach Soup
Slow-cooked cubed beef simmers with crushed tomatoes, oregano, and garlic in a savory broth, finished with vibrant wilted baby spinach in wide bowls.

Ingredients
- 1 lb (450g) lean beef chuck, cubed
- 2 cups (500ml) crushed tomatoes
- 3 cups (75g) fresh baby spinach
- 1 onion, diced
- 2 cloves garlic, minced
- 4 cups (950ml) beef broth
- 1 tsp (5g) dried oregano
Instructions
- Place the beef cubes, diced onion, and minced garlic into the slow cooker.
- Add the crushed tomatoes, beef broth, and dried oregano.
- Cook on low for 6 to 8 hours until the beef is tender.
- Stir in the fresh baby spinach during the last 10 minutes of cooking until wilted.
- Serve hot in a wide soup bowl.
Nutrition
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