I just made a really simple recipe from Jamie Oliver for dinner tonight. It's also really healthy with lots of vegetables and fish.
Here's the recipe and step-by-step instructions:

Spicy Dory Fish with Lemon Zucchini Couscous

3 garlic cloves
1 bunch fresh cilantro/flat parsley
1/2 medium red chilli
1 can of tomato puree (430g)
1 medium red onion
2 medium sized zucchini
2 skinless fresh dory fish fillets
200g quick cook couscous
1/2 lemon

Get a frying pan on medium heat. Peel and finely slice 2 garlic cloves. Finely chop the cilantro/parsley as well as the chilli. Add olive oil to your pan and add the garlic, leaves and chilli. Fry until the garlic is brown. Add the tomato puree. Season with salt and pepper and simmer for 5 minutes. Add the fish fillets and cook for about 15 minutes or until the fish looks cooked.
In the meantime:

Roughly chop your zucchini and slice your onions into wedges. Heat olive oil in another pan and add the remaining garlic, zucchini, onion and salt & pepper. Toss around until the zucchinis are half cooked.

Cook your couscous according to the instructions on the box - basically just adding boiling water + salt. Cover your bowl with plastic wrap and leave for 5 minutes. Then mix your fried vegetables into the couscous. Wrap again for about 5-10 minutes then add the juice of 1/2 a lemon.

When your fish is cooked through, place on top of your lemon zucchini couscous and tuck in :)