Green Machine Tuna Pasta Bake

1
Set a large saucepan over a medium heat. Melt the butter then add the leek, broccoli and carrot. Cook for 10-12 minutes or until the vegetables have softened. Add the frozen peas and cook for 1 minute.
2
Stir in the flour until the mixture thickens then slowly pour in the milk and vegetable stock, stirring constantly until the sauce thickens. Mix in 100g cheddar and the pesto.
3
Use a stick blender or food processor to blend the sauce until completely smooth. Stir in the tuna.
4
Meanwhile, cook the pasta in boiling lightly salted water for 2 minutes less than pack instructions. Drain the pasta, mix in to the sauce then tip in to a large baking dish.
5
Scatter with the breadcrumbs, parmesan, the remaining cheddar and a drizzle of olive oil. Bake for 25 minutes until the top is crispy and the pasta is bubbling. Remove from the oven to cool for 10 minutes before serving.

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