• Preheat the oven to 190c/375f
• Cook the pasta: In a pot of salted boiling water, cook the pasta for 2 minutes less than the required time on the packet, drain.
• Prep the veg: While the pasta is cooking, add the spinach and tomato into a food processor for a few seconds to combine. Set aside.
• Cook the aromatics: Heat the oil in a pan and cook the onions till soft. Add the garlic and tomato paste. Stir and cook for a minute or two on medium heat.
• Seasoning: Add salt and pepper to taste.

Cheese/White Sauce

• Make the Béchamel Sauce: Heat a pan and melt the butter, add in the flour and pour the milk in two parts stirring continuously until you get a slightly thick consistency. Turn it into a cheese sauce (Mornay Sauce) In-between stirring also add the parmesan cheese and garlic & herb seasoning. If it's too thick add milk, if you need flour to thicken, add flour by the teaspoon. Finish with a pinch/sprinkle of fresh black pepper. Find a full béchamel sauce recipe here.
• Combine all the Ingredients together and prep to bake: Add the cooked pasta into an oven dish, add the tuna, spinach and tomato mix, white sauce and combine everything. Bake: Top it with grated cheese and bake for 20 to 25 minutes or until golden brown.