Creamy smoked trout spread on thin whole-grain crackers is a delicious appetizer, but serve it with an array of artfully arranged nibbles—ripe tomatoes, crunchy cucumber slices and red onion—and you have an easy summer dinner. Pack it up and take it outdoors for a weeknight picnic. Serve with a baby arugula salad tossed with olive oil, lemon juice, Parmesan cheese and a generous grinding of pepper.