Agree that you should eat lots of veggies - watch the fruit, though because it tends to have a lot of sugar that can turn to fat quickly, if not used up.
Chicken and turkey are very good for you, but so are lean cuts of red meat. Meat, eggs, dairy are chock full of vitamin B12, which is essential for energy.
While green tea is good for you, I've never had any luck with it helping with weight loss.
A 30 minute work out or walk is good; aim for at least 3 days/week, if not more.