One thing I've noticed here in Tulsa - usual goods like soap, sugar etc...are cheaper at "gringo" stores like Reasor's, Warehouse Mkt...
Meat, fruit, veggies are much cheaper (and usually better) at Las Americas or Nam Hai.
You can buy the stuff to make steak tortas with fresh veggies for 8 people for twenty bucks at Las Americas.
For the same twenty, you can get enough fresh veggies and rice (add chicken, pork, deer) to make a fantastic stir-fry that'll feed you for days....
Stir fry is a mainstay in our house. super simple, tasty and easy. I can eat it for lunch for an entire week:
1 package of pork chops, or whatever pork is on sale. cubed up the more the better. I usually go for one 'super saver' pack a wally world.
1/2 onion cubed (one of those gimmicky choppers makes this take no time at all)
1 package of frozen peas and carrots
1 tbsp garlic (or a little more, if you are like me), we like jar-o-minced-garlic from wally world. makes this easy.
1-2 tbsp oil
pinch of salt
little bit of soy sauce.
3 cups steamed white or whole grain rice.
1st, get the rice going in a rice cooker or pot.
cook up the pork, garlic and onion in a wok using the oil, drain most of the oil when done.
toss in the peas and carrots and let cook until no longer frozen, stirring on occasion
toss on the rice and remove heat. toss with soy sauce and let stand a couple minutes.
makes GOBS of food. can feed our family of 5 easily with leftovers.
feeds me lunch all week - and I'm stuffed to the gills every day.
Takes a little prep work, but the payoff is worth the time!