Arrange the broccoli florets on a baking dish and season them with salt and cracked black pepper.
Drizzle 1 tbsp of pickling oil from the marinated olives over the seasoned broccoli and mix them well.
Roast them in the oven at 200-225 degrees Celsius for 8-9 minutes.
Remove from the oven and keep it aside to cool.
Season the spring onions with salt and cracked black pepper and put them onto the grill.
Keep turning the spring onions and keep basting them with chilli oil.
Once the spring onions are lightly charred, take them off the grill and keep them aside to cool.
To make the filling, mix together, the readymade relish with eggless mayonnaise in a bowl.
Then crumble blue cheese into the filling mixture, add chopped garlic chives and mix them well.
Next, roughly tear in the roasted broccoli into the filling and mix well till the broccoli is evenly coated.
Brush the slices of bread with chilli oil and spread the broccoli filling between the 2 slices of the bread.
Brush the top and bottom of the bread slices with a little more chilli oil and grill the sandwich evenly on both the sides.
To make a spring onion relish, mix together marinated green olives, halved cherry tomatoes, cracked black pepper, basil leaves, a dash of balsamic vinegar, olive oil and the grilled spring onions.
Serve the sandwich with the grilled spring onion relish, cherry tomatoes and marinated olives.
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Key Ingredients: broccoli, spring onion, basil, cherry tomatoes, olive oil, vinegar, bread, gherkins, cucumber, sugar, balsamic vinegar, bell pepper, mayonnaise, blue cheese, garlic, olives, salt, black pepper