Mushroom Zucchini Bacon Frittata

Last Sunday morning, I woke up to the sound of rain tapping against the kitchen window and the most incredible smell wafting from my roommate's corner of the apartment. She was making this frittata, and the combination of sizzling bacon and earthy mushrooms pulled me out of bed before my coffee had even brewed.

Since that rainy morning, this frittata has become my go-to when friends sleep over. Theres something magical about pulling a puffed, golden frittata out of the oven and watching everyone gather around the counter, plates in hand, while it rests on the stovetop.

Ingredients

• 1 medium zucchini, diced: Summer squash adds sweetness and a tender texture that balances the salty bacon perfectly
• 200 g (7 oz) cremini or button mushrooms, sliced: These earthy fungi become meaty and concentrated when cooked down
• 1 small yellow onion, finely chopped: The foundation that builds depth as it caramelizes with the bacon
• 2 cloves garlic, minced: Add this with the zucchini so it doesnt burn and turn bitter
• 150 g (5 oz) smoked bacon, diced: The smoky fat renders out and seasons everything else in the pan
• 8 large eggs: Room temperature eggs whisk up more smoothly for a uniform custard
• 60 ml (¼ cup) whole milk or cream: Makes the texture silkier though you can skip it for a denser result
• 100 g (1 cup) shredded cheddar or gruyère cheese: Gruère adds nutty sophistication while cheddar brings sharp comfort
• 2 tbsp chopped fresh parsley: Bright herbaceous notes that cut through the richness
• ½ tsp salt and ¼ tsp black pepper: Adjust after tasting since the bacon contributes significant saltiness
• ¼ tsp dried thyme (optional): A subtle background note that echoes the mushrooms earthiness
• 1 tbsp olive oil: Helps the bacon cook evenly and prevents sticking

Instructions

Preheat and prep your pan:

Set your oven to 180°C (350°F) and pull out your oven-safe skillet now so youre ready later

Crisp the bacon:

Heat olive oil in the skillet over medium heat and cook the diced bacon for 4-5 minutes until golden and the fat has rendered

Build the vegetable base:

Add onion first and sauté 2 minutes until softened then stir in mushrooms and cook 4 minutes until their liquid evaporates

Add the final vegetables:

Toss in zucchini and garlic and cook 2-3 minutes until zucchini is just tender but not mushy

Whisk the custard:

In a bowl beat eggs with milk or cream then stir in cheese parsley salt pepper and thyme until fully combined

Combine and set the edges:

Pour the egg mixture over the skillet contents and gently stir to distribute evenly then cook on medium-low heat 3-4 minutes until edges begin to set

Bake to perfection:

Transfer the skillet to the oven and bake 15-18 minutes until puffed and the center is set with just a slight wobble

Rest and serve:

Let the frittata rest 5 minutes before garnishing with extra parsley slicing and serving warm or at room temperature

Pin It

My sister-in-law asked for the recipe after Christmas brunch and now she makes it for her family every Sunday morning. Its become her thing the dish her kids actually request and that feels like the highest compliment a recipe can receive.

Making It Your Own

Swap bacon for turkey bacon or leave it out entirely and add more vegetables for a vegetarian version. Sometimes I throw in diced bell peppers or baby spinach depending on whats in the crisper drawer.

Serving Suggestions

A simple green salad with lemon vinaigrette cuts through the richness beautifully. Crusty bread for soaking up any runny eggy bits is never a mistake either.

Make Ahead Wisdom

Frittata is arguably better the next day and travels well for picnics or weekday lunches. It also freezes exceptionally well wrapped tightly in plastic then foil.

• Cool completely before wrapping to prevent condensation and sogginess
• Reheat gently in a low oven rather than the microwave to preserve texture
• Individual portions freeze well for grab-and-go breakfasts all week

Pin It

Theres something deeply satisfying about a dish that looks impressive but comes together with such humble ingredients. Its the kind of recipe that quietly becomes part of your life.

Recipe Questions & Answers

→ Can I make this frittata ahead of time?

Yes, this dish reheats beautifully. Store leftovers in the refrigerator for up to 3 days and gently warm in a low oven or microwave. It can also be served cold, making it excellent for meal prep or lunch boxes.

→ What vegetables can I substitute?

Sautéed spinach, bell peppers, asparagus, or cherry tomatoes work wonderfully. For a seasonal twist, try diced butternut squash in autumn or fresh peas in spring. Keep the total vegetable amount roughly the same for proper setting.

→ Can I make it vegetarian?

Absolutely. Simply omit the bacon and add extra vegetables or plant-based protein. Consider incorporating crumbled feta, goat cheese, or sun-dried tomatoes for additional flavor depth. A splash of smoked paprika can mimic the smoky bacon notes.

→ Why do I cook it on the stovetop first?

Starting on the stovetop sets the edges and begins cooking the bottom layer, creating structure before baking. This technique prevents the eggs from overcooking or becoming rubbery while ensuring even baking throughout.

→ What if I don't have an oven-safe skillet?

Sauté the vegetables and bacon in any pan, then transfer to a greased baking dish before adding the egg mixture. The baking time may vary slightly—check for doneness by gently shaking the pan; the center should be set with no liquid egg remaining.

→ How do I know when it's done baking?

The frittata is ready when the edges are golden and puffed, the center feels set when gently touched, and a knife inserted near the center comes out clean. It will continue cooking slightly as it rests, so remove it when just set.