
Turn your ham leftovers into a cozy slow cooker soup blending soft lentils, crispy bacon, and flavorful tomato base. This filling soup gently bubbles away all day, building deep flavors that'll make you think it's from a country grandmother's recipe book.
I remember the first batch I ever made - the smell was so good everyone in my house kept sneaking peeks under the lid. Now we can't wait for holiday ham leftovers because we know this tasty soup is coming soon after.
Essential Ingredient Breakdown
- Thick-cut bacon builds the taste foundation for best results
- Vidalia onions bring natural sweetness that works against the smokiness
- Green or brown lentils stay intact during the long cooking time
- Carrots add a pop of color and gentle sweetness
- Leftover ham chunks give meaty texture and savory depth
- Italian seasoning spreads herby goodness throughout
- Tomato sauce forms a smooth, rich broth
Crafting Delicious Soup
- Starting Off:
- Begin with cold bacon in your pan and slowly heat until it's crispy and golden, around 8 minutes.
- Building Taste:
- Toss diced onions, celery, and carrots into the bacon fat, cooking until soft and aromatic.
- Adding Scent:
- Throw in freshly chopped garlic and stir just until you can smell its lovely scent.
- Slow Cooker Work:
- Put everything in your slow cooker and let the magic happen over 6-8 hours.
- Last Touches:
- Check and fix the salt and pepper levels right before you serve for the best taste.

We really enjoy this soup during cold winter nights. The mix of soft lentils with smoky ham bits takes me back to my grandma's cooking, though she never used anything like a slow cooker.
Developing Rich Tastes
What makes this soup special is how long it cooks. During those hours, the lentils soak up all the ham and bacon flavors, while the veggies slowly release their sweetness into the mix.
Getting The Timing Right
How long you cook matters for texture. Six hours on low gives you firm lentils that hold their shape. Eight hours makes everything thicker, more like stew if that's what you prefer.
Jazzing Up Your Serving
Try topping each bowl with a little drizzle of olive oil and some fresh herbs. The hot soup with cool, fresh toppings makes it taste like something from a fancy restaurant.
Full Dinner Suggestions
This hearty soup goes great with a chunk of crusty bread or warm cornbread. Add a small green salad with light dressing for a nice contrast to the rich soup.
Customizing Your Soup
Feel free to toss in extra veggies like diced potatoes or mushrooms to make it heartier. Want it spicy? Add more red pepper or throw in a chopped jalapeño.
Storing Your Soup
Keep it in sealed containers in your fridge for up to four days. Warm it up slowly on the stove or in your microwave. You can also freeze portions for up to six months.

I've tried tons of lentil soup recipes over the years, but this one stays our family favorite. Something about that mix of smoky ham, crunchy bacon bits, and tender lentils makes every spoonful feel like a hug - great anytime but absolutely perfect when it's cold outside.
Frequently Asked Questions
- → Can I add a ham bone?
- Definitely! It gives an extra boost of flavor if you have one.
- → How about cooking it on the stove?
- Sure thing! Simmer for around an hour until the lentils soften.
- → Which lentils should I use?
- Both green and brown lentils are great options.
- → Want it spicy?
- Feel free to toss in more red pepper flakes for some heat.
- → If it gets too thick?
- Just pour in more broth while it cooks until it’s how you like it.