What to Do With Leftover Sourdough (Easy Recipes You’ll Love)

Don’t Waste That Loaf: Recipes for Leftover Sourdough Bread

If you bake sourdough regularly, you already know this truth:
sometimes the loaf outpaces the family. And that’s okay.

A slightly stale or under proofed loaf of sourdough isn’t a problem — it’s an opportunity. In fact, leftover sourdough bread is perfect for cozy, simple meals that bring everyone back around the table.

Instead of tossing it, here are a few of our favorite ways to turn leftover sourdough into something delicious (and stress-free).

Why Leftover Sourdough Is Actually Better

Once sourdough bread has had a day or two to dry out, it becomes ideal for recipes that need structure. Stale bread soaks up flavor without falling apart, which makes it perfect for casseroles, croutons, and breadcrumbs.

If your loaf feels a little firm — that’s exactly what you want.

French Toast Casserole

This is one of the easiest and most comforting ways to use leftover sourdough bread. Cubed sourdough holds up beautifully to a rich egg and milk mixture, giving you a soft center with lightly crisp edges.

French toast casserole is especially great because:

• It can be prepped the night before

• It feeds a crowd

• It’s perfect for slow mornings and holidays

Tip: If your sourdough is very crusty, let the custard soak in for a few extra minutes before baking.

Savory Sourdough Breakfast Casserole

Leftover sourdough isn’t just for sweet recipes. It shines in savory dishes too.

A savory sourdough breakfast casserole is a great option for:

• Weekend breakfasts

• Make-ahead meals

• Using up eggs, cheese, and leftover veggies

The bread absorbs all the flavor while keeping its texture, making each bite hearty and satisfying.

Ingredients

• 4–5 cups sourdough bread, cubed (day-old works best)

• 1 lb breakfast sausage (pork or turkey)

• 8 large eggs

• 1½ cups milk or half-and-half

• 1 - 1 ½ cups shredded cheese (cheddar, Colby Jack, or a blend)

• 2 cups shredded hashbrowns/ potatoes

• 1 tsp salt

• 1 tsp pepper

• 1 tsp garlic powder

• Optional add-ins: sautéed onions, bell peppers, spinach, or mushrooms

Directions

1. Grease a 9×13 baking dish and spread the cubed sourdough evenly across the bottom.

2. In a skillet, cook the sausage until browned and fully cooked. Drain excess grease.

3. Sprinkle the cooked sausage evenly over the sourdough bread.

4. Add any optional veggies, if using.

5. In a large bowl, whisk together the eggs, milk, half of the shredded cheese, salt, pepper, and garlic powder.

6. Pour the egg mixture evenly over the bread and sausage.

7. Top with the remaining shredded cheese.

8. Cover and refrigerate overnight or let sit for at least 30 minutes before baking.

9. When ready to bake, preheat oven to 350°F.

10. Bake uncovered for 40–45 minutes, or until the center is set and the top is lightly golden.

11. Let rest for 5–10 minutes before slicing and serving.

Homemade Sourdough Croutons

If you have just a few slices left, croutons are the answer.

Simply cube the bread, toss with olive oil and seasonings, and bake until golden. They’re perfect for:

• Soups

• Salads

• Snacking straight off the pan

Homemade sourdough croutons store well and taste better than anything from a bag!

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Sourdough Stuffing

Sourdough makes one of the best stuffings, and it’s a perfect way to use up a loaf that’s a few days old. The naturally sturdy texture holds up beautifully while soaking in all the cozy, savory flavors.

Sourdough stuffing is great for:

• Holiday meals

• Sunday dinners

• Making ahead and reheating

To use leftover sourdough for stuffing:

• Cube the bread and let it dry out completely

• Toss with sautéed onions, celery, herbs, and broth

• Bake until golden on top and tender in the center

This is one of those recipes that feels special but is actually very simple — and it’s just as delicious served alongside a weeknight roast as it is on a holiday table.

Sourdough Breadcrumbs

Breadcrumbs are one of the most overlooked uses for leftover sourdough — and one of the most practical.

To make them:

• Let sourdough dry completely

• Pulse in a food processor

• Store plain or seasoned

Use sourdough breadcrumbs for:

• Meatballs

• Casserole toppings

• Breaded chicken or veggies

They add incredible flavor and texture to everyday meals.

Freezing Tips: Save Your Sourdough for Later

One of the simplest ways to avoid waste is to freeze sourdough before it goes stale.

Slice and Freeze

The best method is to slice your loaf first, then freeze it. This allows you to:

• Grab only what you need

• Toast directly from frozen

• Avoid thawing the entire loaf

Place slices in a freezer-safe bag and store for up to 3 months.

Freezing for Recipes

If you know you’ll use the bread for casseroles or croutons:

• Cube it first

• Freeze in portions

• Pull it out when you’re ready to cook

Frozen sourdough works perfectly for baked recipes and saves so much time.

A Simple Way to Bake with Intention

Sourdough baking is meant to be slow, simple, and nourishing — not wasteful or stressful. Using every crumb is part of that rhythm.

Whether you turn your leftover loaf into breakfast, dinner, or something to stash in the freezer, you’re making the most of the bread you worked hard to bake.

And that’s a beautiful thing.

xo, Courtney