Breakfast
My standard breakfast consists of two bars -- a "meal replacement bar" plus a conventional granola bar. I eat these while I pack up camp, which takes 10-20 minutes depending on how much stuff I have with me (e.g. 3-season backpacking: 10 minutes; backpacking + packraft: 15 minutes; winter conditions: 20 minutes).
Meal replacement bars:
PROBAR -- Art's Original or Sweet & Savory
Bear Valley -- Mealpack or Pemmican
Granola bars:
Sunbelt Chocolate Chip Fudge-Dipped or Coconut Fudge-Dipped
Nature Valley Sweet & Salty Nut
Nature Valley Chewy Trail Mix Fruit & Nut
Nature Valley Crunchy
Snacks
I eat snacks throughout the day, about every 2 or 2.5 hours depending on my hiking intensity and for how long (measured in months) I have been on the trip -- the greater the intensity or the longer the trip, the more I have to eat. I try to have a variety of snacks to chose from, but my success is limited by factors like caloric density and shelf life. The reality is that hunger is the best seasoning, and since I'm always hungry nearly every snack tastes great.
Salty snacks:
Sesame sticks
Crushed potato chips
Pringles
Peanut butter-filled Pretzels
Fritos
Protein-rich or meat:
Pepperoni
Beef jerky
Premier Protein bar
Snickers Marathon Protein bar
MET-Rx Big 100 bar
Cookies:
Grandma's Big Cookies
Keebler Chips Deluxe Rainbow Cookies
Chocolate-covered peanut butter crackers
Trail Mix:
Back to Nature - Bar Harbor Blend
Bulk
Homemade, including salted soybeans, pumpkin seeds, wasabi peas, corn nuts, Reese's Pieces
M&M's Peanut or PB, Ocean Spray Craisins, cashews, Emerald Cocoa Roast Almonds, chocolate-covered raisins, and chocolate-covered ginger
Smears:
Peanut butter
Almond butter
Nutella
Candy bars:
Nutrageous
Twix Caramel
Snickers
Baby Ruth
KitKat
Milky Way
Deserts
I use Desert as seventh snack if I'm putting in a long day or I eat it immediately upon arriving at camp in order to hold me over until dinner. Usually I am worn out and low on calories/energy when I arrive in camp, and the chocolate-induced sugar rush of these snacks is wonderful.
M&M's - Peanut
Hershey Nuggets
Hershey Miniature
Reese's Pieces
Sun-Maid Choc Covered Raisins
Dinners
The staples of my dinners are carbohydrates, e.g. potatoes, rice, beans, and pasta. To add flavor, add calories, and increase caloric density I make sure to add some fat to the meal, like butter (in the winter), coconut oil (a solid at room temperature), and olive oil (messy and prefer to avoid).
Here are some ideas:s
Beans and Rice, using instant beans from the Santa Fe Bean Co and Minute Rice; add butter
Spiced couscous with oil
Dry ravioli or tortellini with tomato powder, Spicy Spaghetti seasoning, and Kraft Parmesan cheese
Potato Soup with dried vegetables
Freeze-dried meals from Mountain House
Top Ramen