Every year on 18 June, Sustainable Gastronomy Day invites us to reflect on something we often take for granted: the food on our plates.

Food is much more than nourishment. It connects us to culture, communities, natural resources and the choices that shape our future. In a world facing growing environmental and health challenges, sustainable gastronomy offers a simple but powerful idea: the way we produce, prepare and consume food matters.

At Sustain-a-bite, this principle is at the heart of our mission. Through research and innovation, we are exploring how minimally processed plant-based foods can contribute to healthier diets and more sustainable food systems across Europe.

But sustainable food systems are not built in laboratories alone. They are also built in kitchens, supermarkets, restaurants and homes.

What is Sustainable Gastronomy?

The United Nations defines sustainable gastronomy as a way of cooking and eating that takes into account where ingredients come from, how food is produced, and the impact our choices have on people and the planet.

This means considering factors such as:

• The environmental footprint of ingredients
• Seasonal and local food production
• Food waste reduction
• Nutritional quality
• Cultural heritage and food traditions
• Accessibility and affordability

Importantly, sustainable gastronomy is not about perfection.

It is about making informed choices that support both personal wellbeing and environmental sustainability.

“Sustainable gastronomy is not about changing everything overnight. It is about recognising that everyday food choices can collectively create meaningful change.”

Why Plant-Based Meals Play an Important Role

Scientific evidence consistently shows that increasing the consumption of plant-based foods can help reduce the environmental pressures associated with food production while supporting healthier dietary patterns.

Foods such as:

• Legumes
• Whole grains
• Vegetables
• Fruits
• Nuts and seeds

typically require fewer resources to produce than many animal-based alternatives while providing essential nutrients and dietary diversity.

This does not mean that everyone must follow the same dietary pattern. Rather, it highlights the value of incorporating more plant-based meals into everyday life.

Small changes, repeated over time, can have a significant impact. Here you can find the Indian lentil curry, the first one of the 3 recipes we wanted to highlight from our recipe book:

Indian Lentil Curry – a simple, nourishing plant-based meal built around lentils, vegetables and spices

Sustainable Eating Starts with Familiar Foods

One of the biggest misconceptions about sustainable diets is that they require exotic ingredients or complicated recipes.

In reality, some of the most sustainable meals are also the simplest.

Lentils, beans, grains, seasonal vegetables and herbs have formed the foundation of traditional cuisines around the world for generations. These ingredients are affordable, versatile and accessible to many households.

Research consistently shows that familiarity plays a major role in food acceptance. People are more likely to adopt sustainable eating habits when recipes feel approachable and fit naturally into their daily routines.

This is why practical, easy-to-prepare meals are so important when encouraging dietary change.

“Sustainability becomes much easier when it is integrated into everyday habits rather than treated as a special occasion.”

Bringing Sustainable Gastronomy into Everyday Life

Sustainable gastronomy is often discussed at the level of policies, strategies and food systems. Yet its real impact happens through daily decisions.

• Choosing seasonal produce.
• Cooking more meals at home.
• Reducing food waste.
• Exploring plant-based recipes.
• Using ingredients more creatively.

None of these actions need to be dramatic. Their value lies in their consistency.

For many people, sustainable eating begins with discovering recipes that are both enjoyable and practical. The second recipe we wanted to highlight is our Rainbow salad, Add some healthy colors to your diet!

Rainbow Salad – a vibrant combination of vegetables, fruit, legumes and grains that celebrates diversity on the plate.

Food Innovation and Consumer Adoption

While innovation is essential for creating more sustainable food systems, new products alone cannot drive change.

Consumers ultimately determine whether sustainable foods become part of everyday diets.

Taste, convenience, affordability and familiarity all influence food choices. Successful food innovation therefore requires more than nutritional and environmental benefits — it must also align with consumer expectations and real-life habits.

This is one of the challenges being addressed through the Sustain-a-bite project, where researchers and industry partners are working together to develop plant-based food solutions that are not only sustainable, but also appealing and practical for consumers.

The future of food depends on finding this balance between innovation and everyday adoption.

Celebrating Sustainable Gastronomy Through Simple Recipes

To mark Sustainable Gastronomy Day, we have been sharing a selection of plant-based recipes from the Sustain-a-bite Recipe Book.

These recipes demonstrate that sustainable eating does not require complicated techniques or specialised ingredients. Instead, they focus on simple combinations of vegetables, legumes, grains and natural flavours that can easily become part of everyday cooking.

Here you can find our last highlighted recipe of the day, Noodles with broccoli and Peanut Sauce!

Noodles with Broccoli & Peanut Sauce – a colourful plant-based dinner combining vegetables, grains and simple pantry ingredients.

Looking Ahead

Building more sustainable food systems requires collaboration across the entire food chain — from farmers and researchers to businesses, policymakers and consumers.

Every stakeholder has a role to play.

As we celebrate Sustainable Gastronomy Day, it is worth remembering that food is one of the most direct ways we interact with sustainability every single day.

The choices we make may seem small in isolation, but together they contribute to shaping healthier, more resilient and more sustainable food systems for the future.

“The future of food will be shaped not only by innovation, but also by the everyday choices that people make around their tables.”