I found out that I was eating a lot and spending 900-1000 a month for food monthly. Is it too much? Will I save money if i cook and eat at home?

Hakim Saab's calculation is reasonable.

off course midwest is cheaper

कही सेतोकेटोले फेरी न्वाराण गरे यो धागो बुनेको त हैन ? I questioned the motto of this thread?
Someone was talking , gee I am paying too much for my car insurance how much you guys pay for insurance, drive regular car like Camry or Accord and live in Suburb area ( Mercedes owner have to pay more).
Same applies to your groceries shopping , each store charges differently for the same product. If you go to Whole Food you may be eating ORGANIC / Natural food and paying 3 times. On the top WHAT you eat and HOW you eat. A blueberry cost 5 per box and you are not eating a box a day? If you are then I will suggest to change your eating habit.

Bottom line is you can afford to pay that much and paying for it, you are blending Capitalism and  fitting right very well. अन्त्यमा : खान पिनको कुरा गरी हाल्यौ अनी यती खर्च गर्छु भनी चिट्ठा ( खर्च्को लेजर ) पनि प्रस्तुत गरौ : जसरी खान पिनको सुची तयार गर्यौ मेरो दिमागमा  उब्जिए को कुरा  कही नपाउनेले केरा पायो बोक्रै सित खायो गर्या हो कि ?   क्यालोरी पनि हिसाब किताब गर्दै जाउ: फेरी कसरी पेट घटाउने भनी आर्को धागो चाडै कोरौला ! 

I am not showing off, I was just surprised at the end of the month