Effortless Maple Mustard Croissant

Featured in: Morning Meals to Start Your Day Right

This sandwich piles creamy eggs and turkey sausage onto croissants, then tops everything with a maple mustard sauce that’s equal parts silky and punchy. Maple syrup blends with Dijon, apple cider vinegar, and warm spices for a sweet-sassy kick. Switch up the cheese, swap in plant-based sausage, or grab dairy-free options and you’re set. Whether you’re brunching slow or jetting fast, this breakfast is always tasty.
A woman in a kitchen smiling.
By Chloe Chloe
Updated on Sun, 25 May 2025 15:52:09 GMT
Maple Mustard Croissant Breakfast Sandwich Pin it
Maple Mustard Croissant Breakfast Sandwich | cookitdelish.com

Oat bars packed with strawberry jam fill your day with a sweet pop of flavor, plus good stuff that keeps you feeling great. You get a crumbly oat mix that works as a solid bottom layer and a light topping, hugging a strawberry center sweetened just with real berries and maple. No gluten, no dairy, and no sugar overload here, so these squares can fit all sorts of lifestyles. They’re awesome for on-the-go breakfasts, a quick afternoon bite, or a lighter dessert. You get a nice mix of textures, and the strawberry layer really shines through.

This all started when my days were way too packed and I really needed something I could grab in the morning that wouldn't leave me hungry an hour later. I played around with the sweetness and texture loads of times before finding the trick. Now, they're a weekly thing at our place. My husband, who doesn’t usually go for my healthy treats, loves these and sneaks them into his work bag. The real surprise was my health-nut mother-in-law—she gobbled them up, then wanted to know how they got so tasty without using butter or sugar. Now, she makes them for her friends when they walk together.

Tasty Ingredients

  • Almond flour: Brings a hint of nuttiness, helps keep the bars moist, and adds protein and good fats
  • Rolled oats: Make the bars nice and hearty, and they’re loaded with fiber that’s good for your belly
  • Pure maple syrup: Sweetens everything up in a rich way, with bonus minerals you don’t find in regular sugar
  • Coconut oil: Keeps things buttery and soft, plus it’s got those medium-chain fats people rave about
  • Fresh strawberries: Add a burst of color and loads of antioxidants with a bright, fruity sweet taste
  • Baking soda: Makes the crumble airy by giving it a little lift
  • Lemon juice: Lifts all the flavors and helps the strawberries look fresh
  • Sea salt: Gives just the right balance so everything tastes better
  • Fresh lemon zest: Adds a pop of citrus that wakes up the whole bar
  • Tapioca starch: Thickens the filling but keeps it nice and smooth, not gluey

Simple Baking Guide

Cool Down After Baking:
Once baked, let the bars rest so they really set up and slice cleanly later.
Toss On Crumb Topping:
Finish by scattering the oat crumble you saved on top, letting bits of strawberry peek out.
Spread on Strawberry Layer:
Gently layer the strawberry jam over the oat base, don’t push down.
Build Your Base:
Press almost all of the oat blend into your lined pan to make a firm bottom, keeping back just a little for topping.
Mix Your Oat Stuff:
Get your oven hot at 375°F, line your baking dish, and mix the oats, almond flour, baking soda, and salt together. Stir in the maple syrup, solid coconut oil, and a splash of lemon juice, mixing til crumbly.
Cook Up the Strawberry Jam:
Toss cut-up strawberries, maple syrup, a bit of lemon juice, zest, and salt into a pot and cook on medium, mashing some berries as you stir for about 8 minutes. Add tapioca starch, keep mixing, and let it thicken up.
Easy Maple Mustard Croissant Breakfast Sandwich Pin it
Easy Maple Mustard Croissant Breakfast Sandwich | cookitdelish.com

After wrecking a few pans of bars by cutting them too soon, I figured out that letting them cool down all the way is the secret to perfect squares with neat edges and the best texture. My kid loves stirring up the oat crumble, while I take over the strawberries, so now making these is something fun we do together in the kitchen. One time I handed these out at a playdate, and three parents asked what’s in them—nobody thought there was no butter or regular sugar because of the taste and texture.

Tasty Pairings

Try these with thick Greek yogurt, some salted almonds, or even dairy-free ice cream for a treat. Sip some ginger or mint tea on the side for a nice refresh, or spread a little nut butter on a bar for a richer snack.

Fun Twists

Switch things up by swapping in berries like blueberries, using apples and cinnamon, or tossing in some chocolate chips. Add chopped nuts for a crispier bite or swirl in peanut butter for a bolder flavor. Try mango or peach instead of strawberries for a totally different vibe, or throw in some chia seeds for crunch and extra nutrition. A pinch of cardamom or ginger brings cozy spice, or sprinkle in shredded coconut for some added chew.

Keeping Them Fresh

Keep bars in a sealed container on the counter for 3 days, stash in the fridge for a week, or freeze for up to three months. If you freeze, pop them in the fridge to thaw overnight or heat up gently to enjoy warm. For the freezer, wrap each one in parchment so they don't stick and stay nice and fresh.

What’s Inside

Each piece has oats for fiber, almonds and coconut oil for those healthy fats, and steady energy comes from its simple carb balance. Strawberries and maple syrup give sweetness that won’t mess with your blood sugar, plus you’re getting vitamins and antioxidants in every bite. You also load up on vitamin C, good monounsaturated fats, and anti-inflammatory coconut oil, so you get a snack that’s actually good for you.

Delicious Maple Mustard Croissant Breakfast Sandwich Pin it
Delicious Maple Mustard Croissant Breakfast Sandwich | cookitdelish.com

These bars nail it when it comes to balancing great taste and real nutrition. You really can have something yummy that leaves you feeling good, all in one bite.

Frequently Asked Questions

→ Can I make these breakfast sandwiches ahead of time?
You sure can. Prep the sauce and sausage before, then just make the eggs and stack everything up when you’re ready so your croissants stay flaky.
→ What's the best cheese to use with these breakfast sandwiches?
Sharp cheddar tastes awesome with the maple mustard, but if you’re feeling like a change, go for Swiss, Gruyère, or some pepper jack. Just pick whatever cheese melts easy—even a plant-based one.
→ Can I use regular bread instead of croissants?
Of course! Croissants are buttery and flaky but you can grab bagels, English muffins, or thick sandwich bread. Just make sure whatever you use can handle these fillings.
→ How can I make this recipe vegetarian?
Swap the turkey sausage out for your favorite plant-based sausage links. There are lots of solid meatless brands that work just fine.
→ Can I store leftover maple mustard sauce?
Yep! Pop it in a sealed jar in the fridge and use it up in a week. Also really tasty with chicken strips or drizzled on roasted veggies.

Effortless Maple Mustard Croissant

Buttery croissants, soft eggs, turkey sausage, and tangy maple mustard sauce come together in every bite.

Prep Time
10 Minutes
Cook Time
15 Minutes
Total Time
25 Minutes
By Chloe: Chloe

Category: Breakfast & Brunch

Difficulty: Intermediate

Cuisine: U.S. Morning Fare

Yield: 4 Servings (4 big breakfast sandwiches)

Dietary: ~

Ingredients

→ For Sandwich Assembly

01 4 big croissants, stale or freshly baked
02 1 cup of cooked sausage patties (try plant-based if you prefer)
03 1 tablespoon of butter or swap with olive oil for no dairy
04 1/2 cup of your favorite milk (regular, almond, oat, etc.)
05 4 large eggs
06 Salt and pepper, just enough to season
07 1 cup shredded cheddar (totally optional or go dairy-free)

→ To Make the Sweet Sauce

08 1/4 cup pure maple syrup
09 1 teaspoon garlic powder
10 2 tablespoons Dijon mustard
11 1 tablespoon apple cider vinegar
12 1/2 teaspoon ground black pepper
13 1/2 teaspoon salt

Instructions

Step 01

In a small bowl, mix maple syrup, mustard, garlic powder, vinegar, pepper, and salt until it’s smooth and ready to go. Once done, just set it aside to use later.

Step 02

Break the eggs into a mixing bowl, add the milk, and throw in a bit of salt and pepper. Whisk like crazy to combine. Heat a skillet over medium and melt the butter, then pour in the eggs. Stir gently with a spatula, folding now and then. Stop cooking when they’re soft but still slightly shiny—about 3-4 minutes.

Step 03

While working on the eggs, follow the package directions to heat your sausage patties. Want a little more flavor? Toss them into a skillet for a quick sear until they’re golden and crispy around the edges.

Step 04

Slice the croissants in half and pop them either in a toaster, a broiler, or onto a griddle. Get the cut side just barely crispy but keep that inner flaky softness intact.

Step 05

Start building by spreading out the toasted croissant bottoms. Place a big pile of eggs on each, followed by warmed sausage patties. Drizzle on the sauce, and if you’re using cheese, sprinkle it now so the heat melts it. Lastly, pop on the croissant tops, and enjoy your tasty breakfast stack!

Notes

  1. Feel free to tweak with what you’ve got or what fits your diet.
  2. The sauce can stay fresh in your fridge for a week.
  3. Wrap assembled sandwiches in foil for reheating. A quick oven warm-up will do!

Tools You'll Need

  • A non-stick frying pan
  • Whisk and mixing dishes
  • A spatula to fold eggs
  • Toaster, broiler, or hot surface griddle

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Includes gluten (croissants)
  • Contains dairy (milk, butter, cheese) - switches provided to avoid dairy
  • Eggs are part of this dish

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 520
  • Total Fat: 32 g
  • Total Carbohydrate: 35 g
  • Protein: 23 g