Ingredients
Main Ingredients
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3 medium zucchini, approximately 600–700 g
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1 medium onion, finely chopped
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1 red bell pepper, finely diced
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4 large eggs
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½ cup wholemeal flour
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½ cup reduced-fat grated cheddar cheese
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¼ cup grated Parmesan cheese, optional
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2 cloves garlic, finely minced
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2 tablespoons chopped fresh parsley
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1 teaspoon dried oregano
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½ teaspoon black pepper
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¼ teaspoon salt, or to taste
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1 tablespoon olive oil
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1 teaspoon baking powder
Optional Additions
You can make the slice more substantial by adding:
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½ cup chopped spinach
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½ cup grated carrot
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½ cup chopped mushrooms
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100 g cooked chicken, diced
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100 g lean ham, diced
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A pinch of chili flakes
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Fresh basil or dill
Instructions
1. Prepare the Zucchini
Preheat your oven to 180°C (350°F).
Wash the zucchini thoroughly and trim both ends. Grate the zucchini using the large holes of a box grater.
Zucchini contains a lot of water, and removing some of that moisture is one of the most important steps in making a good zucchini slice.
Place the grated zucchini in a clean kitchen towel or cheesecloth and squeeze firmly to remove excess liquid. You do not need to make the zucchini completely dry, but removing a substantial amount of water will help prevent the finished slice from becoming soggy.
Set the zucchini aside.
2. Prepare the Vegetables
Finely chop the onion and red bell pepper. Mince the garlic and chop the parsley.
For an even lighter version, you can add extra vegetables such as spinach, mushrooms, or grated carrot.
If using mushrooms, it is a good idea to cook them briefly in a dry or lightly oiled pan first. This removes some of their moisture and helps keep the zucchini slice firm.
3. Prepare the Egg Mixture
Crack the eggs into a large mixing bowl and whisk until well combined.
Add the wholemeal flour, baking powder, oregano, black pepper, and salt. Whisk again until you have a reasonably smooth mixture.
Add the grated cheddar, Parmesan if using, minced garlic, and chopped parsley.
The cheese adds flavor while helping the slice develop a pleasant golden top. If you want to reduce the calories or saturated fat, you can reduce the amount of cheese or use a reduced-fat variety.
4. Combine Everything
Add the squeezed zucchini, onion, and red bell pepper to the egg mixture.
Stir everything together thoroughly with a large spoon or spatula.
The mixture should be thick and well combined. If it appears extremely wet, squeeze additional moisture from the zucchini. If it seems unusually dry, you can add another beaten egg.
5. Prepare the Baking Dish
Lightly grease a rectangular baking dish with approximately one tablespoon of olive oil.
A baking dish around 20 × 30 cm (8 × 12 inches) works well.
You can also line the dish with baking paper. This makes removing and slicing the zucchini slice much easier.
Pour the mixture into the prepared dish and spread it evenly.
6. Bake
Place the dish in the preheated oven and bake for approximately 30–40 minutes.
The zucchini slice should become firm in the center and lightly golden on top.
Cooking time can vary depending on the amount of moisture in the zucchini and the dimensions of your baking dish. A deeper mixture may require additional cooking time.
To check whether it is ready, gently press the center. It should feel set rather than liquid or excessively soft.
7. Rest Before Cutting
Remove the zucchini slice from the oven and allow it to rest for approximately 10–15 minutes before cutting.
This step is useful because the eggs and flour continue to set as the slice cools slightly.
Cut it into squares or rectangles and serve.
Serving Suggestions
This zucchini slice is versatile and can be served in several ways.
For breakfast, serve a square with fresh tomatoes, avocado, or a side of fruit.
For lunch, pair it with a large green salad containing lettuce, cucumber, tomato, carrots, and a simple lemon dressing.
For dinner, serve it alongside roasted vegetables or a fresh salad.
It also works well in lunch boxes because it can be eaten cold or at room temperature.
For a higher-protein meal, serve it with Greek yogurt or cottage cheese on the side.
Healthy Ingredient Swaps
Make It Gluten-Free
Replace the wholemeal flour with a suitable gluten-free flour blend. You can also experiment with chickpea flour for a different flavor and texture.
Make It Lower in Carbohydrates
Reduce or replace the flour and increase the amount of eggs and vegetables. Keep in mind that changing the flour substantially can alter the texture, so small adjustments may be necessary.
Increase the Protein
Add cooked chicken, tuna, cottage cheese, or extra eggs. If adding meat or fish, make sure it is fully cooked before incorporating it into the mixture.
Make It Vegetarian
The basic recipe is already vegetarian. Add spinach, mushrooms, corn, tomatoes, or fresh herbs for additional flavor and variety.
Reduce the Dairy
Use less cheese or choose a reduced-fat cheese. You can also omit Parmesan entirely.
Storage
Allow the zucchini slice to cool before storing it.
Place leftovers in an airtight container and refrigerate. They can be reheated in the microwave or oven, although the slice is also delicious cold.
For meal preparation, cut the cooled slice into individual portions and refrigerate them in separate containers. This makes it easy to grab a serving for breakfast or lunch.
If freezing, wrap individual portions securely and place them in a freezer-safe container. Thaw in the refrigerator before reheating.
Tips for the Best Zucchini Slice
Squeeze the zucchini well. This is the most important tip. Excess water can make the slice soft and watery.
Don’t overmix. Stir the ingredients until they are evenly distributed rather than mixing unnecessarily.
Use fresh zucchini. Smaller or medium zucchini generally have a pleasant texture and are easy to grate.
Let it rest. Cutting the slice immediately after removing it from the oven can result in pieces that fall apart.
Adjust the vegetables. If adding particularly watery vegetables such as mushrooms or tomatoes, cook or drain them first.
Watch the salt. Cheese can already contain a considerable amount of salt, so taste the mixture before adding too much additional seasoning.
Approximate Nutrition
The nutritional values will vary depending on the exact ingredients and portion size. If the recipe is divided into 8 servings, each serving will provide a useful combination of vegetables, protein from eggs and cheese, and carbohydrates from the wholemeal flour.
For a lower-calorie version, reduce the cheese and oil. For a higher-protein version, add lean chicken or additional eggs.
Conclusion
A healthy zucchini slice is a simple way to turn everyday vegetables into a satisfying meal. The combination of grated zucchini, eggs, wholemeal flour, colorful vegetables, herbs, and a moderate amount of cheese creates a dish that is flavorful without requiring complicated cooking techniques.
The key to a successful zucchini slice is controlling the moisture. Squeeze the grated zucchini thoroughly, avoid adding too many watery ingredients, and allow the finished slice to rest before cutting.
Serve it with a fresh salad for lunch, enjoy it with breakfast, or prepare several portions ahead of time for convenient meals throughout the week.
Prep time: 15 minutes
Cooking time: 30–40 minutes
Total time: About 50–55 minutes
Servings: 8
Oven: 180°C / 350°F
