High-Protein Spinach Sandwich: Fresh, Filling and Packed with Protein
If you thought a sandwich needed bread to be satisfying, this High-Protein Spinach Sandwich is ready to prove otherwise. Instead of traditional bread, the sandwich is built with soft, flexible spinach and egg “bread”, then generously layered with juicy shredded chicken breast, fresh tomato, avocado, crisp salad leaves and a creamy avocado yogurt sauce. With around 50 g of protein in one sandwich, it makes a seriously satisfying lunch while staying naturally flourless, grain-free, gluten-free and low in carbs. If creative bread-free lunches are your thing, you’ll also want to try my High-Protein Chicken Courgette Wrap and High-Protein Chicken Quesadilla (No Tortilla).
Scroll down or tap ‘Jump to Recipe’ for the full printable recipe card.
Simple Ingredients, Big Flavours
There is nothing complicated hiding in this recipe. A handful of everyday ingredients come together to create plenty of texture, freshness and flavour, while chicken breast, eggs and high-protein yogurt give the sandwich its impressive protein content. It follows the same idea as my High-Protein Tuna Cucumber Roll and High-Protein Salmon Courgette Wrap (No Bread!): take a familiar lunch format, replace the usual bread or wrap with something lighter, and make the filling satisfying enough that you absolutely do not miss it.
- Fresh spinach – The star of the homemade spinach bread. Once blended with the eggs, it creates that beautiful green colour without the need for flour or traditional bread.
- Eggs – They bind the spinach mixture and give the bread enough structure to lift, stack and hold all those generous sandwich fillings.
- Chicken breast – Cooked and shredded chicken breast provides the main protein boost while keeping the filling tender and easy to layer.
- Avocado – Used both in the creamy yogurt sauce and sliced inside the sandwich, avocado adds richness and a buttery texture that balances the fresh vegetables.
- High-protein yogurt – Blended with avocado, lemon and salt, it creates a smooth and creamy spread while contributing extra protein.
- Lemon juice – A small amount brings freshness and acidity to the avocado yogurt cream and prevents the sauce from tasting too rich.
- Tomato and salad leaves – These bring juiciness, crunch and freshness between the softer layers of spinach bread, avocado and chicken.
- Olive oil spray and salt – Just enough to help the spinach bread cook neatly in the sandwich maker and bring out the flavour of the simple ingredients.
How to Make High-Protein Spinach Sandwich
Make the Spinach Bread
Add the fresh spinach leaves, eggs and a pinch of salt to a food processor and blend until completely smooth. You can also use an immersion blender if you prefer.
Preheat your sandwich maker and lightly spray the cooking plates with olive oil spray. Pour half of the spinach mixture into the sandwich maker, close the lid and cook for about 2 minutes, or until the spinach bread is fully set and cooked through. Carefully remove it and repeat with the remaining spinach mixture to make the second piece. Set both pieces of spinach bread aside while you prepare the filling.
Make the Avocado Yogurt Cream
Add half an avocado, the high-protein yogurt, lemon juice and a pinch of salt to a food processor. Blend until smooth and creamy, scraping down the sides if needed to make sure everything is evenly combined.
Assemble the Sandwich
Place one piece of spinach bread in the centre of a large sheet of parchment paper. Make sure the parchment is large enough to wrap completely around the finished sandwich, as this will help keep all of the generous layers together. Spread half of the avocado yogurt cream over the spinach bread. Top with 2 salad leaves, followed by the tomato slices, thinly sliced avocado and shredded cooked chicken breast. Add the remaining 2 salad leaves, then spoon the rest of the avocado yogurt cream over the top. Place the second piece of spinach bread on top to close the sandwich.
Wrap and Slice
Wrap the sandwich tightly in the parchment paper, folding the paper securely around the sides so the filling stays in place and the sandwich is easier to hold.
Using a sharp knife, slice the wrapped sandwich in half through the parchment paper. Serve straight away and enjoy.
Why We Love This High-Protein Spinach Sandwich
This High-Protein Spinach Sandwich delivers around 50 g of protein in a fresh, satisfying meal that feels far more exciting than a standard chicken-and-salad lunch. The soft spinach and egg bread keeps the recipe naturally flourless, grain-free, gluten-free and low in carbs, while the shredded chicken breast, high-protein yogurt and eggs make it especially filling. The combination of juicy tomato, creamy avocado, crisp salad leaves and smooth avocado yogurt cream gives every bite a mix of textures and fresh flavour, so the sandwich still feels generous and indulgent despite being made with simple, wholesome ingredients. If you enjoy creative high-protein meals that replace traditional bread, try my High-Protein Tortilla Chicken Quiche and High-Protein Salmon & Courgette Tacos.
Perfect for Any Occasion
This High-Protein Spinach Sandwich is ideal for a quick lunch, an easy dinner or a satisfying post-workout meal when you want plenty of protein without relying on traditional bread. It comes together quickly, uses everyday ingredients and is substantial enough to serve as a complete meal on its own. Wrapping it in parchment paper also makes the generously filled sandwich much easier to hold, slice and eat, whether you are enjoying it at home or packing it for later. For more fresh and protein-packed meal ideas, take a look at my High-Protein Courgette Squares(Gluten-Free, Low-Carb) and Mini Rice Paper Quiches (Protein-Packed Snack).
Instagram Tutorial & More
Want to see how this High-Protein Spinach Sandwich comes together? Watch our quick video on Instagram and don’t miss our other easy and delicious recipes:
- High-Protein Pea and Mint Pasta
- High-Protein Cottage Cheese Pesto Pasta
- Crispy Chicken Rice Paper Rolls (Air Fryer, High Protein)
- Rice Paper Chicken Sausage Rolls
- Crispy Salmon Squares
- Tortilla Quiche Cups (Protein-Rich)
Happy cooking,
Izabella
Description
This High-Protein Spinach Sandwich is fresh, filling and packed with around 50 g of protein. Instead of regular bread, it uses a simple spinach and egg base cooked in a sandwich maker until soft and flexible. The sandwich is layered with shredded chicken breast, avocado, tomato and crisp salad leaves. A creamy avocado yogurt sauce adds extra flavour and even more protein. Wrapping the sandwich in parchment paper keeps all the generous layers neatly together and makes it easy to slice. It’s a great option for a satisfying lunch, post-workout meal or quick high-protein dinner.
Ingredients
For the spinach bread
For the avocado yogurt cream
For the sandwich filling
Instructions
-
Add the spinach, eggs and a pinch of salt to a food processor and blend until smooth. You can also use an immersion blender. Preheat the sandwich maker and lightly spray it with olive oil. Pour in half of the spinach mixture, close the sandwich maker and cook for about 2 minutes, or until cooked through. Repeat with the remaining mixture to make the second spinach bread. Set both pieces aside.
-
To make the avocado yogurt cream, add the avocado, high-protein yogurt, lemon juice and a pinch of salt to a food processor. Blend until smooth and creamy.
-
Place one piece of spinach bread in the centre of a large sheet of parchment paper, making sure the paper is large enough to wrap around the entire sandwich. Spread half of the avocado yogurt cream over the spinach bread. Top with 2 salad leaves, the tomato slices, sliced avocado, shredded chicken breast and the remaining salad leaves. Spoon the remaining avocado yogurt cream over the filling, then top with the second piece of spinach bread.
-
Wrap the sandwich tightly in the parchment paper to hold all the layers together and make it easier to handle. Slice it in half through the paper and enjoy.
Nutrition Facts
Servings: 1 ServingCalories:747.04kcalTotal Fat:37.23gCholesterol:393.89mgSodium:503.53mgPotassium:4642.35mgTotal Carbohydrate:61.2gDietary Fiber: 37.75gSugars: 20.75gProtein:57.59gVitamin A: 5891.84IUVitamin C: 91.42mgCalcium: 603.7mgIron: 16.85mgVitamin D: 1.84IUVitamin E: 7.13IUVitamin K: 1554.92mcgVitamin B6: 2.09mgVitamin B12: 1.2mcgPhosphorus: 889.06mgMagnesium: 303.63mgZinc: 6.36mg
Note
- Use either a food processor or an immersion blender to make the spinach bread mixture and avocado yogurt cream.
- Cooking time may vary slightly depending on your sandwich maker. Cook the spinach bread until fully set and cooked through.
- Use cooked chicken breast to keep the sandwich especially high in protein.
- Wrap the assembled sandwich tightly in parchment paper before slicing. This helps hold all the layers together and makes it much easier to eat.
- The sandwich is naturally flourless, grain-free, gluten-free and low in carbs. Check the labels of your yogurt and other packaged ingredients if you need it to be strictly gluten-free.
- For the best texture, assemble and serve the sandwich fresh.
