Pan roasted brussel sprouts. Basically clean, cut in half, par boil, drain then throw in the largest pan you have on med heat with butter, salt and papper. Let them get slightly crispy/caramelized. It really is very easy.
Another one is creamed spinach - it's very easy to make. Thaw and drain some spinach VERY well. In large pan sautee diced onions until translucent, add the spinach, salt and pepper to taste. Sprinkle with some bread crumbs and flour, work it all in, then add milk till it's the consistency you like. Before serving check all seasonings then sprinkly lightly with nutmeg, mix and serve.
Candied carrots are also very easy - basically boil, drain then toss with equal parts brown sugar and butter, thicken with a little cornstarch if it's too runny, season and serve.