Patty Pan Squash Egg Muffins

Seriously, no joke, these are the best Patty Pan Squash Egg Muffins. They’re the ones I make when summer squash starts piling up and breakfast still needs to feel simple. It’s a classic recipe with fresh and delicious ingredients. Tender squash is mixed with eggs and sharp cheddar and red bell pepper and spinach. Perfect for busy mornings with fruit or crisp breakfast potatoes on the side.

A batch of Patty Pan Squash Egg Muffins is one of my go-to easy breakfasts. Not only do they make a super satisfying meal, but they’re packed with vegetables and protein and keep me full for hours. Also, there aren’t any complicated methods or ingredients needed. And meal prep’s a cinch. I often make them on Sunday and pair them with an Egg and Cheese Breakfast Sandwich later in the week.

With just a few basic ingredients probably already in the fridge and pantry, you can bake a tray for breakfast or brunch or even tuck one into a lunch box for a filling snack. They taste warm and savory right away, but they’re just as useful chilled when the morning gets away from you. A little ketchup or hot sauce on the side works too.

Ingredients

Here’s what I use for this recipe and you can always make substitutions if you prefer.

• yellow patty pan squash: Trimmed and grated into fine shreds to yield about 2 packed cups before salting.
• kosher salt: Use 1/2 teaspoon to draw moisture from the squash and 1/4 teaspoon in the egg mixture.
• egg: Bring close to 65°F before whisking so the mixture blends evenly.
• whole milk: Adds enough fat and liquid for tender centers without making the muffins loose.
• sharp cheddar: Shredded so it melts into small savory pockets and lightly bronzed edges.
• red bell pepper: Cut into 1/4-inch cubes so the pieces stay suspended and cook through.
• baby spinach: Chopped into small pieces and patted dry to prevent wet pockets.
• scallion: Thinly sliced with two added to the mixture and one reserved for finishing.
• garlic powder: Disperses evenly through the eggs without adding raw garlic moisture.
• ground black pepper: Adds a mild peppery finish that balances the sweet squash.
• extra-virgin olive oil spray: Coats all 12 muffin cups so the set egg releases without tearing.

Tools You’ll Need

• 12-cup metal muffin tin: A standard dark metal 12-cup tin gives steady browning and enough space for the full batch, while silicone alone can leave pale soft edges.
• Large box grater: A sturdy grater with wide holes creates visible squash shreds, while fine holes turn the squash into watery pulp.
• Large clear glass mixing bowl: A 4-quart bowl leaves room for eight eggs and vegetables, while a smaller bowl makes folding messy and uneven.
• Balloon whisk: A medium balloon whisk blends the eggs in under 60 seconds, while an oversized whisk can add too much foam.
• Clean cotton kitchen towel: A tightly woven towel removes squash moisture without losing shreds, while loose cheesecloth can let fine pieces escape.
• Instant-read thermometer: A fast digital thermometer confirms the centers reach 160°F, while visual checks alone can miss under-set middle cups.
• Thin paring knife: A narrow 3-inch blade loosens the baked edges with one clean circle, while a thick blade can tear the warm sides.

Instructions

Step 1: Grate and drain the patty pan squash

Set the oven to 375°F, then grate 3 medium yellow patty pan squash into fine shreds. Toss them with 1/2 teaspoon kosher salt and rest for exactly 10 minutes at about 70°F. Gather the shreds in a clean towel and twist firmly over the sink for 45 to 60 seconds.

Keep squeezing until no steady stream remains. The squash should shrink to about 1 1/2 packed cups and feel damp but not dripping. You’ll smell a fresh grassy scent and see only a few droplets when you press a handful.

Stop before the shreds turn dry and matted. Skip the squeeze and trapped water makes the muffins rubbery. Removing moisture protects the egg structure during baking.

Tip: Use the large holes of a box grater so the squash stays visible instead of disappearing into wet pulp.

Step 2: Whisk and fold the egg mixture

Add 8 large eggs and 1/2 cup whole milk to the drained squash at about 65°F. Whisk in short circles for 45 seconds, then scrape the bowl once. Fold in 1 cup shredded sharp cheddar, 1/2 cup diced red bell pepper, 1 cup chopped baby spinach and two sliced scallions.

Add 1/4 teaspoon kosher salt, garlic powder and black pepper, then fold eight times. The mixture should look thick and glossy with vegetables suspended from top to bottom. You’ll see small cheddar strands and bright red pieces rather than a smooth yellow liquid.

Don’t beat past 90 seconds or the eggs trap excess foam and rise unevenly. Fold just until distributed because gentle mixing keeps the finished centers tender.

Tip: Cut the red bell pepper into 1/4-inch cubes so every muffin gets color without heavy pieces sinking.

Step 3: Divide the mixture into muffin cups

Coat a standard dark metal 12-cup muffin tin with 2 teaspoons extra-virgin olive oil spray while the oven holds at 375°F. Stir the batter twice from the bottom, then divide it among all 12 cups within 4 minutes. Fill each cup three-quarters full and place larger vegetable pieces unevenly across the tops.

Each cup should hold the same depth, but the red pepper and spinach won’t look perfectly centered. Tap the filled tin once and watch small air bubbles rise. Overfill above three-quarters and the domes spill onto the rim.

Even portions set together because equal depth controls heat transfer in every cup.

Tip: Wipe any batter from the metal between cups before baking because thin drips scorch by minute 18.

Step 4: Bake until the centers set

Bake the filled tin at 375°F for 18 to 22 minutes. Rotate it 180 degrees at minute 12 and leave the oven closed afterward. Check the center muffins first with an instant-read thermometer.

Pull the tin when they reach 160°F and the tops spring back after a light press. (I tried 400°F first, the tops browned before the centers set. ) The muffins should rise into uneven golden domes with bronze edges and small melted cheddar pockets.

You’ll smell toasted cheese and hear a faint sizzle around the outer cups. Go past 165°F and the egg proteins tighten into a dry sponge. Baking at 375°F sets the centers before the edges overcook.

Tip: Place the tin on the middle rack with at least 2 inches above it so the domes can rise without harsh top heat.

Step 5: Rest and split one muffin

Rest the muffins in the tin for 5 minutes until their centers cool to about 140°F. Run a thin knife around each edge with one smooth circle, then lift them without twisting. Place one muffin on a small white plate and split it once through the center.

Scatter the reserved sliced scallion over the warm surface. The cut face should show moist yellow curds with pale squash shreds, red pepper cubes and dark green spinach. A few crumbs may fall and the top should stay softly domed.

Pull them sooner and the sides tear. Wait longer than 10 minutes and condensation softens the edges. A brief rest lets steam settle while the egg structure firms.

Tip: Warm the serving plate in a 200°F oven for 2 minutes so the single portion stays tender at the table.

Pro Tips

• Choose yellow patty pan squash about 3 inches wide because smaller squash have thinner skins and fewer firm seeds.
• Measure the squeezed squash at about 1 1/2 packed cups because extra volume can keep the center muffins below 160°F.
• Keep red bell pepper cubes near 1/4 inch so they soften within 22 minutes and don’t sink heavily.
• Use a dark metal muffin tin at 375°F because glass cups hold heat longer and can toughen the egg edges.
• Rotate the tin once at minute 12, but don’t open the oven again before minute 18 or the domes may fall.
• Cool the batch for exactly 5 minutes before loosening because hot edges tear and 10-minute rests create condensation.
• Finish with one sliced scallion and serve while the muffins are near 140°F for the best tender texture.

• Add 1/2 cup crisp applewood-smoked bacon and reduce the kosher salt by 1/4 teaspoon for a smoky breakfast version.
• Replace the sharp cheddar with 3/4 cup crumbled feta and add 2 tablespoons chopped fresh dill for a tangier herb flavor.
• Use 1 cup shredded pepper Jack, 1/2 cup drained corn and 1/4 teaspoon ancho chile powder for a mild Southwest variation.
• Fold in 3/4 cup cremini mushrooms sautéed for 8 minutes after they cool, which adds savory depth without excess moisture.

Storage Instructions

Cool the muffins completely for 30 minutes, then refrigerate them in a shallow airtight container for up to 4 days. Place a paper towel under and over the muffins to catch condensation. Freeze them individually for 1 hour, then wrap each one and transfer to a freezer bag for up to 2 months.

Label the bag with the date so older muffins get used first. Reheat refrigerated muffins at 325°F for 8 to 10 minutes or microwave one at 70% power for 45 to 60 seconds. From frozen, unwrap and bake at 325°F for 18 to 20 minutes.

Add 1 teaspoon shredded sharp cheddar during the final 3 minutes if the surface seems dry. Discard muffins with a sour odor, slimy edges or gray-green spotting.

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Final Thoughts

This is the kind of recipe I wish I had found years ago. It would’ve saved me so many rushed breakfast mornings because the squeezed squash keeps every center tender.

But now that I have it, I make it all the time and I think you will too. If you enjoyed this, check out my Homemade Cinnamon Rolls for another popular breakfast on the blog.

And leave a comment, I read every single one and it really makes my day.