Take some meat (pork, beef, veal, chook) sliced inch thick, wash spuds, quarter them, carrots, pumpkins or what you fancy. Get a plastic bag, put all in bag, add lots of chilli, salt and spices to your taste and virgin olive oil. Mix thoroughly in bag, empty into oven dish add a glass of white wine or beer cover with alfoil and slow cook it until ready.
This is standard fare for me, love it. Adding vine or beer is NOT wastage! Never drink cask vine. It is gross. Would not touch it with a sixty feet barge pole. The extra weight of the bottles are sweet burden.
Also dried goods from the local ethnic's shops (Spanish, Italian,Greek, Hungarian,Croatian,Portuguese) like Csabai, Chorizo, rods of Salami's or anything NOT in vacuum pack but hung and dried, no refrigeration needed, lasts ages if kept dry, tastes like haven too. Hand it to any crew with a piece of cheese and REAL bread, Italian, Greek or such and you be revered. This type of bread you can keep in your freezer for months.
Also beef jerky, take a piece of beef, slice it into 1.5 inch long snakes. Get 1/2 cup white vinegar and add to app. 2 litre water. Soak beef over-night. Tap it dry with a rag, cover it with very c o a r s e ground black pepper, and coriander seeds and rock salt ( use large rock salt for you have to remove it later to stop the salt soaking up moisture and making everything soggy!) hang it up to air dry in a shady spot. Because of the vinegar pepper and salt, flies could do no harm to it. When dry, shake the salt off and store it in a dry place. Lasts for years, at the end it will be bone dry, good to chew on during late night watches alone on deck. Keeps you awake when you bite on your tounge, too.