Are there any Nutritionist's out there to help me?

I'm looking for a diet plan I can stick to ; If someone could help me that would be great. I'm 4'8 & I just had a baby 5 months ago , I was 90 pounds when I got pregnant & I am not 110 , Can anyone help me to not only be healthier but to loose weight with foods I can find at my local Meijer's.