Rice and peas, with soy sauce, if you have in, surprisingly satisfying.
Porridge with sliced bannana, for breakfast or snack.
Spaghetti, nice oil if you have and salt added to boiling water, tin of tomatos, add garlic clove, plus oregano if you have it.
Bread, a brown soda bread is filling, nice with an apple slices on top.
Make white bread, same ingredients for pizza dough, flour & yeast mainly, check online.
See budget Italian cooking. They put time and love into simple ingredients, and you can eat really well.