To spend $80 in groceries for 15-17 days; breakfast, lunch, and dinner for 2 people, plus $20 in baby formula and $20 in diapers?
You're talking about eating on $5.00 a day for 2 people including breakfast, lunch, and dinner. Wow! I'm thinking rice, cooked wheat (porage in the Little Rascals), and tofu (from an oriental market).
So mabye the question should be:
What can I make for breakfast for two for under $5.00, that I can eat at lunch, and dinner too?
Eating the same thing everyday would be awful. But 16 different meals large enough for making 6 meals would be good. Maybe 5 would be well enough.
Here's mine:
Oriental Sausage and rice:
In a large pot bring 4 cups of water to a boil. Add the rice and sausage. Cook about 20 minutes until the rice is done. Then remove the sausage from the rice pot. Cut the sausage into thin 1/4" slivers. Mix the slivers of oriental sausage into the rice. Serve with a vegetable and soy sauce.
So mabye the question should be:
What can I make for breakfast for two for under $5.00, that I can eat at lunch, and dinner too?
Eating the same thing everyday would be awful. But 16 different meals large enough for making 6 meals would be good. Maybe 5 would be well enough.
Here's mine:
Oriental Sausage and rice:
- 1 pound package of oriental sweet sausage
- 2 cups dry rice
In a large pot bring 4 cups of water to a boil. Add the rice and sausage. Cook about 20 minutes until the rice is done. Then remove the sausage from the rice pot. Cut the sausage into thin 1/4" slivers. Mix the slivers of oriental sausage into the rice. Serve with a vegetable and soy sauce.
You may be able to do it, have you heard of the grocery game? It helps you save $$ on food. BUT - if there are special dietary needs/restrictions you won't be able to do it, and you won't be able to eat much meat besides fatty beef and frozen ck breasts. But vegetarian and dair sources of protein will help you stretch your food $$.
if you sign up at the formula companies' websites, they'll send you coupons off formula (sometimes as much as $5 or $10 off); that might help you with your budget a bit. 

Well I try and plan my meals out before I go grocery shopping doing this will help you save alot of money. I always use coupons also this will help you save alot of money and when I see a sale on a item that I use then I will buy in bulk, I bet that most people thinks that I am crazy when they see me buying in bulk or maybe they think that I am feeding a army.