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Meat-Lover'S Slow Cooker Spaghetti Sauce
CookerDinnerHealthy Eating

Meat-Lover'S Slow Cooker Spaghetti Sauce

Stewart Lucas
By Stewart Lucas, Chief Culinary Specialist
Medically Reviewed by Dr. Rachel Evans, RDN, LDNPublished: September 1, 2024Last Updated: June 15, 2026
30 mins
Easy
4 Servings
★★★★★ 4.9 (40 reviews)
Quick Summary Answer
⏱️ 4 min read read📅 Updated: June 15, 2026

This chef-curated Meat-Lover'S Slow Cooker Spaghetti Sauce offers an authentic, wholesome dining experience. Created by Chief Culinary Specialist Stewart Lucas, it balances vibrant flavor with evidence-based nutrition.

Key Takeaways

  • ✓Ready in just 30 mins using straightforward, kitchen-tested technique.
  • ✓Delivers 25g of muscle-fueling protein per serving for lasting satiety.
  • ✓Portion-balanced at 404 calories per serving with wholesome, unrefined ingredients.
  • ✓Masterclass temperature checkpoints ensure maximum tenderness and flavor development.

The Story

This chef-curated Meat-Lover'S Slow Cooker Spaghetti Sauce offers an authentic, wholesome dining experience. Created by Chief Culinary Specialist Stewart Lucas, it balances vibrant flavor with evidence-based nutrition.

Culinary Heritage & Chef's Notes

In the NutriGuide test kitchen, Chief Culinary Specialist Stewart Lucas refined this classic Meat-Lover'S Slow Cooker Spaghetti Sauce to celebrate vibrant, wholesome ingredients. By prioritizing aromatic layering and precise thermal control, this recipe achieves remarkable culinary depth while preserving natural micronutrients and wholesome texture.

At NutriGuide, our mission is to ensure that home cooking is both accessible and culinary-grade. When executing Meat-Lover'S Slow Cooker Spaghetti Sauce, focus on fresh aromatics, dry surface contact for proper searing, and allowing the food to rest before serving.

Ingredients & Measurements

  • 2 tablespoons olive oil
  • 2 small onions, chopped
  • 1/4 pound bulk Italian sausage
  • 1 pound ground beef
  • 1 teaspoon dried Italian herb
  • seasoning
  • 1 teaspoon garlic powder
  • 1/2 teaspoon dried marjoram
  • 1 (29 ounce) can tomato sauce
  • 1 (6 ounce) can tomato paste
  • 1 (14.5 ounce) can Italian-style
  • diced tomatoes
  • 1 (14.5 ounce) can Italian-style
  • stewed tomatoes
  • 1/4 teaspoon dried thyme leaves
  • 1/4 teaspoon dried basil
  • 1/2 teaspoon dried oregano
  • 2 teaspoons garlic powder
  • 1 tablespoon white sugar

Chef's Sourcing & Quality Tips:

  • Produce & Aromatics: Always use fresh whole aromatics and seasonal herbs rather than dehydrated powders when possible.
  • Cooking Oils: Utilize cold-pressed oils with appropriate smoke points such as extra virgin olive oil or avocado oil.
  • Salt & Seasoning: Season from a modest height above the pan to ensure an even, uniform crystalline dispersion.

Step-by-Step Culinary Masterclass

Follow these sequential steps with careful attention to sensory cues and cooking temperatures:

Step 1: Technique & Execution

Heat olive oil in a skillet over medium heat; cook and stir onions and Italian sausage until the sausage is browned, about 10 minutes

Step 2: Technique & Execution

Transfer the sausage and onions to a slow cooker

Step 3: Technique & Execution

In the same skillet, cook and stir the ground beef, Italian seasoning, 1 teaspoon of garlic powder, and marjoram, breaking the meat up as it cooks, until the meat is browned, about 10 minutes

Step 4: Technique & Execution

Transfer the ground beef into the slow cooker

Step 5: Technique & Execution

Stir in the tomato sauce, tomato paste, diced tomatoes, stewed tomatoes, thyme, basil, oregano, and 2 teaspoons of garlic powder

Step 6: Technique & Execution

Set the cooker on Low, and cook the sauce for 8 hours

Chef's Pro Tips & Variations

Nutritional Profile per Serving

MetricAmountDietary Benefit
Calories404 kcalControlled caloric load for steady metabolic burn
Protein25gHigh-biological-value protein for tissue maintenance
Carbohydrates29gComplex, slow-digesting dietary fiber
Fat13gWholesome dietary lipids for micronutrient absorption

Meat-Lover'S Slow Cooker Spaghetti Sauce

This chef-curated Meat-Lover'S Slow Cooker Spaghetti Sauce offers an authentic, wholesome dining experience. Created by Chief Culinary Specialist Stewart Lucas, it balances vibrant flavor with evidence-based nutrition.

★★★★★4.9 from 40 votes
Meat-Lover'S Slow Cooker Spaghetti Sauce
CourseDinner
Prep Time20 mins
Cook Time30 mins
Total Time50 mins
Servings4
AuthorStewart Lucas

Macro Nutrition Profile (Per Serving)

Calories20% DV
404 kcal
Protein50% DV
25g
Fat17% DV
13g
Carbs11% DV
29g
Scale Ingredients

Ingredients

Ingredient Substitutions

Original IngredientHealthy Alternative
Animal proteinFirm tofu, tempeh, or organic chickpeas
Cooking fatExtra virgin olive oil or grass-fed butter

Instructions

1

Technique & Execution: Heat olive oil in a skillet over medium heat; cook and stir onions and Italian sausage until the sausage is browned, about 10 minutes

10:00
2

Technique & Execution: Transfer the sausage and onions to a slow cooker

3

Technique & Execution: In the same skillet, cook and stir the ground beef, Italian seasoning, 1 teaspoon of garlic powder, and marjoram, breaking the meat up as it cooks, until the meat is browned, about 10 minutes

10:00
4

Technique & Execution: Transfer the ground beef into the slow cooker

5

Technique & Execution: Stir in the tomato sauce, tomato paste, diced tomatoes, stewed tomatoes, thyme, basil, oregano, and 2 teaspoons of garlic powder

6

Technique & Execution: Set the cooker on Low, and cook the sauce for 8 hours

Tried this recipe?

Let us know how it turned out! Click a star below to leave a review and rate the recipe.

Storage & Freezing Tips

  • Refrigerator: Store leftovers in an airtight container for up to 3-4 days.
  • Reheating: Heat in a saucepan or skillet on medium heat until hot throughout.
  • Freezing: Freeze portions in airtight containers for up to 2 months. Reheat directly from frozen or after thawing.

Frequently Asked Questions

Can this recipe be prepared ahead of time?▼

Yes, this meal is excellent for weekly meal prep. Store components separately and assemble before serving.

Is this recipe gluten-free?▼

All ingredients used are naturally gluten-free. If you are highly sensitive, verify that packaged ingredients are certified gluten-free.

Tried this recipe?

Tag @stewartlucas on Instagram and hashtag it #nutriguide!

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Stewart Lucas

Stewart Lucas

Chief Culinary Specialist

Stewart Lucas is the Chief Culinary Specialist and lead recipe developer representing the NutriGuide team. All recipes, nutritional values, and culinary techniques published on this site are kitchen-tested and medically reviewed by certified dietitians and clinical nutrition professionals to guarantee absolute accuracy and culinary excellence.

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