Egg and Spinach Chaffle Breakfast Sandwich

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A quick keto breakfast sandwich using crispy cheese waffles (chaffles) as buns, filled with fluffy eggs and sautéed spinach. This american-inspired keto (low carb) ready in about 20 minutes combines large eggs, shredded mozzarella cheese, fresh spinach into a breakfast that fuels the morning without the midday crash — make-ahead-friendly and balanced enough to anchor the first meal of the day. Each serving lands at about 450 calories and feeds 2, so it sits comfortably in a weekly breakfast rotation alongside fruit, yogurt, or coffee. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

★ 4.4 (14 ratings) Prep: 10 min Cook: 10 min Serves 2 American cuisine 450 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat a waffle maker. In a bowl, whisk 2 large eggs with 1 cup shredded mozzarella cheese until combined to create the chaffle batter.
  2. Step 2: Spoon half the batter into the preheated waffle maker and cook for 3-4 minutes until golden and crispy. Repeat with remaining batter to make two chaffles.
  3. Step 3: While chaffles cook, heat 1 tbsp butter in a skillet over medium heat. Add 1 cup chopped fresh spinach and sauté for 2-3 minutes until wilted.
  4. Step 4: In a separate bowl, whisk remaining 2 large eggs with 1/2 tsp salt and 1/4 tsp black pepper. Pour into the skillet with spinach and cook, stirring gently, until eggs are softly scrambled.
  5. Step 5: Assemble the sandwich by placing the scrambled eggs and spinach mixture on one chaffle, topping with 4 cooked bacon strips if using, then covering with the second chaffle.
  6. Step 6: Serve immediately for a warm, satisfying keto breakfast sandwich.

Frequently asked questions

How long does Egg and Spinach Chaffle Breakfast Sandwich take to make?

Total time is about 20 minutes (10 min prep + 10 min cook). Most home cooks find this fits comfortably into a busy morning; prep components the night before to save active time.

How do I store leftover Egg and Spinach Chaffle Breakfast Sandwich?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat in the microwave or oven; egg- or grain-based items may need a splash of milk or water to refresh texture. Cold-served items (overnight oats, smoothies) keep 2–3 days in the fridge.

Can I substitute ingredients in Egg and Spinach Chaffle Breakfast Sandwich?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Egg and Spinach Chaffle Breakfast Sandwich for a different number of people?

The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Egg and Spinach Chaffle Breakfast Sandwich low carb?

Yes — this recipe is tagged low carb based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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