Plain Food to Great food

Hi Guys

So I am starting a bit of diet soon and would like some help at least making the food taste decent.

Here is what I am most concerned about giving some flavour

-Ostrich mince

-Mackerel

I am going to combing the mince and fish with either rice or bulgur wheat.

I am allowed to use any herbs,spices and veggies to add flavour, so far alI I have to add to the mince is yellow bell pepper (don't know what else to add). As for the fish so far its just plain bland fish. Any advice will really be appreciated

Oh and one more thing I would like to know is, how many grams does one bell pepper make when its chopped up

Thanks guys