Why This Recipe Works

Zero waste: Transforms holiday leftovers into a restaurant-worthy brunch centerpiece.
One-pan wonder: From stovetop to broiler to table in the same skillet—minimal dishes.
Feeds a crowd: Serves 6-8 hungry guests; slices neatly into wedges for buffet service.
Make-ahead friendly: Mix components the night before; bake in the morning.
Infinitely adaptable: Swap vegetables, cheeses, or herbs based on what lurks in your fridge.
Nutrient-dense start: 23 g protein per slice keeps energy levels steady for parade-watching.

Ingredients You'll Need

Eggs: The backbone of any frittata. I reach for a full dozen large pasture-raised eggs; their deep amber yolks yield a custardy interior and a beautifully golden crown. Room-temperature eggs whip up loftier, so pull them from the fridge 20 minutes before cooking.

Leftover roasted vegetables: About three cups of any combination—think honeyed carrots, charred broccoli florets, balsamic-glazed onions, or maple-sweet squash cubes. Chop larger pieces bite-size so every wedge is balanced. If your vegetables were dressed in heavy sauces, give them a quick rinse and pat dry to avoid excess moisture.

Cooked potatoes or sweet potatoes: Waxy potatoes hold their shape; sweets add caramelized edges. Dice into ½-inch cubes so they heat through evenly. No leftover spuds? Microwave two medium Yukon Golds for five minutes, cool slightly, then cube.

Leafy greens: A generous handful of baby spinach, sautéed kale, or even the leaves from roasted Brussels sprouts add color and vitamins. Wilted salad greens work too—just squeeze out any dressing first.

Cheese: A melter plus a shaker. Use ¾ cup shredded melty cheese (Gruyère, fontina, or mozzarella) for silky pockets and ¼ cup grated Parm or crumbled feta for salty pops. Shred yourself; pre-shredded cellulose can turn grainy.

Fresh herbs: Parsley, chives, or dill brighten the richness. Stir most into the eggs and save a pinch for garnish.

Milk or half-and-half: Two tablespoons loosen the custard, ensuring a tender crumb. Whole milk keeps it light; half-and-half makes it luxe. Skip cream cheese—too dense.

Olive oil & butter: A teaspoon of each prevents sticking and encourages those crave-able lacy edges.

Seasonings: Kosher salt, freshly ground black pepper, and a pinch of smoked paprika echo the roasted flavors. Taste vegetables first; if they were aggressively salted earlier, scale back.

How to Make New Year's Day Frittata with Leftover Veggies

Prep & Preheat

Position rack in upper third of oven; preheat broiler to high. Crack all 12 eggs into a large bowl, add milk, ¾ tsp kosher salt, ½ tsp pepper, and smoked paprika. Whisk 30 seconds until homogenous and slightly frothy—this incorporates air for lift.

Warm Leftovers

Heat a 12-inch oven-safe skillet (cast iron or stainless) over medium. Add olive oil and butter; swirl to coat. Tip in leftover vegetables and potatoes; sauté 3–4 minutes until heated through and any excess moisture evaporates. Moisture is the enemy of a fluffy frittata.

Scatter Greens & Cheese

Sprinkle greens evenly across the skillet; they’ll wilt in seconds. Scatter ½ cup of the shredded cheese over veg; reserve the rest for the top. This layering prevents cheese from sinking and creates gooey strata.

Add Eggs

Give the eggs a final whisk, then pour gently into the skillet. Tilt to distribute; with a heat-proof spatula, lightly draw cooked edges toward center, creating ripples of veg and cheese. Reduce heat to low; cook 3 minutes until edges just set.

Broil & Crown

Sprinkle remaining cheese on top. Transfer skillet to broiler; broil 2–4 minutes until surface is puffed, golden, and center jiggles like custard cake. Rotate halfway for even browning if your broiler heats unevenly.

Rest & Slice

Remove using thick oven mitts—handle stays scorching. Let rest 5 minutes; residual heat finishes cooking the center without overbaking. Run a silicone spatula around edge, slice into wedges, shower with fresh herbs, and serve straight from the skillet.

Expert Tips

Preheat the Broiler Early

A roaring-hot broiler sets the top quickly, preventing rubbery eggs. Start it before you whisk.

De-moist Vegetables

Roasted veg often weep. A hot sauté evaporates liquid, averting a soggy bottom.

Whisk Vigorously

Thirty seconds of brisk whisking homogenizes yolks and whites, giving uniform color and airy texture.

Don’t Overbake

The center should still jiggle when you pull it out; carry-over heat will finish the job.

Handle with Care

Wrap the skillet handle in a silicone sleeve or rubber band as a visual reminder it’s hot.

Make-Ahead Batter

Whisk eggs & seasonings the night before; store covered in the fridge. Give a quick re-whisk before using.

Variations to Try

Storage Tips

Refrigerate: Cool completely, cut into wedges, and refrigerate in an airtight container up to 4 days. Reheat single slices in a non-stick skillet over medium for 3 minutes per side, or microwave 45 seconds on high.

Freeze: Wrap individual slices in parchment, then foil; freeze up to 2 months. Thaw overnight in fridge and reheat as above. Texture will be slightly firmer after freezing.

Meal-Prep Mini: Pour batter into greased muffin tins; bake 12 min at 375°F for grab-and-go breakfast cups that refrigerate beautifully.

Frequently Asked Questions

Yes—bake at 400°F for 12–15 minutes until center is just set. Broiling, however, delivers that signature blistered top.

Use a well-seasoned cast-iron or non-stick skillet, and don’t skimp on oil/butter. After broiling, loosen edges with a silicone spatula while still warm.

You can substitute up to half with whites, but yolks provide richness and structure. All whites will yield a drier texture—add an extra tablespoon of oil.

A 12-inch skillet yields 6–8 servings with ideal thickness. A 10-inch works but will need an extra 1–2 minutes of broiling to cook through.

Gently shake the skillet; the center should jiggle like set gelatin. A toothpick inserted 2 inches from edge should come out clean.

Absolutely—use two skillets or a 9×13-inch baking dish. Bake at 375°F for 18–22 minutes, then broil 2 minutes for color.

New Year's Day Frittata with Leftover Veggies

Why This Recipe Works

Ingredients You'll Need