300 Pesos & a new a new tienda!!!

I just discovered a new little tienda in town. They had great prices on all of the things that we need, mostly fruits and veggies. We are trying to figure out what the cost of food that we need really is. So for this first trip we bought, 1 L milk, spaghetti noodles, sandwich bread, tiny jelly, 2 chorizo links, 6 small bananas, 1 grapefruit, 2 oranges, 1 calabaza, 3 carrots, 1 head lettuce, 1 head broccoli, 8 roma tomatoes. 1 avocado, 1 lime, 1 onion, I head garlic, 1 green pepper, 8 eggs and 2 rolls. All of this came to 300 pesos. (abt $30 usd)