haha, I'm polish so I think I can help you out. Leczo is a polish traditional dish containing: stewed pepper, tomatoes, zucchini, onions and sometimes some sausages. Season it with garlic and "przyprawa do leczo". Try to prepare it! That "przyprawa do leczo" will be great for that dish but you can use it for any other soup as well.

"Kawa zbożowa" is roasted grain beverage - you can use it in conventional coffe maker. I personally don't really like this kind of coffe, but it has some fans in Poland. Try it out with milk!

Other translations were perfect! Hope you enjoy the food you bought :)