If you are on a gain-weight-fast diet program, just eat 10 or 20 grams more than the recommended portion size of your favorite breakfast cereal. A lot of your favorite breakfast cereals are high calorie foods, and they're a favorite snack for many people -- you don't have to stick to eating them at breakfast. Anyway, if you get carried away and overfill your bowl, you have the rest of the day to burn off those excess calories.

A 2-ounce serving of cooked pasta contains only 75 calories. It's the rest of the ingredients, such as the meatballs on the spaghetti, which contribute to this being a high-calorie dish. Of course, pasta does have a lot of carbs, so it's apt to be more filling. You'll want to remember the ratio if you're trying to put on some extra pounds. It's such a good dish that I bet you are still drooling puddles after that description. I wish I had a pic but alas the drooling clogged my head and I just stared at it. Jonathan

One serving of the good old cheddar cheese packs a good 69 calories. However, there are so many other, more decadent options you can choose from! How does a smear (or five) of warm, gooey brie sound right now? Maybe with some apples or pears, or spread on your favorite kind of cracker ... yum! Cheese is basically concentrated milk, so its nutrition value is similar. This means high in protein and calcium but also high in fat, cholesterol and cheese calories. Tom

Salted butter has 36 calories for each 5-gram serving. The calories should pile up, depending on the thickness of the butter or margarine that you'll spread on the bread. The great thing is, you don't have to relegate butter to a spread. Toss out the I Can't Believe It's Not Butter and start using the real thing in your day to day cooking when you don't want to be as slender as you are. Go all out, even, and try Julia Childs' roast chicken! Eating butter increases the absorption of many other nutrients in other foods. Deb

Aside from being good for the heart, a creamy batch of guacamole ups the ante in your weight-gain program. A 261-gram serving contains as much as 360 calories. This is slightly off-topic, but eating a lot of guacamole -- and avocado, in general -- will also make your hair and skin extremely soft. Avocado is one of the most recommended fruits as well as a food for bodybuilding and medicine for cholesterol-related heart disease. Mansi Desai

One large banana contains 120 calories, and when you slice that up with your peanut butter sandwich or breakfast cereal, guess how many more calories you can get? This fruit is excellent for weight gain, but it won't be unhealthy. And bananas really are excellent when you eat them with other foods that are high in calories. Bananas have the reputation for causing weight gain for good reason. They are very high in simple carbs. Eating a lot of them will make you gain weight but it probably won't be from muscle. JP Clifford

One tablespoon of the olive oils that you use at home contains 40 calories and it's healthier than the regular cooking oil that you use for frying. See? High calorie foods really are healthier alternatives sometimes. Not to mention, I think olive oil is the greatest invention ever. It's useful in so many ways! Olive oil, which is pure fat, contains 1920 calories per cup. Any food that has a lot of fat in it will have a high calorie density. Dietlistings

Calories per serving: 300 in one cup For the healthiest chilli and beans, stick to making your own, instead of opting for cans. Here's one of my favorite recipes: foodnetwork.com Here's another one for carnivores like me : foodnetwork.com Add cheese or sour cream before serving and voila! Delicious, healthy, homemade chilli and beans!

Calories per serving: 160 in 1 cup cooked crab Of course this isn't a very pocket friendly addition to your diet (if it is, oh how I'm jealous!) but it's okay to indulge in this crustacean once in a while. They are rich in Omega-3 fatty acids, protein, vitamin E and Vitamin B-12. Few things that taste this good are also this healthy. What do you know, there is a God after all! :D This list works well for those who are watching their diet, too. Remember that if you would like to reach your weight gain (or weight loss) goals, learning as much information as you can about the food items that you pile on your grocery cart helps a lot. It's all a matter of choice on whether you would like to pack on a few more pounds to be a la-J Lo, or if you would rather shed off the excess weight and strictly watch your diet. It's important to know about high calorie foods, no matter what your weight or your goals. Being comfortable with your body and being happy with what you're eating is what's important. Remember that being obsessed with counting the calories that you consume will only work if you know exactly how calories are being used up by your body. When you eat a big fat, juicy burger, for example, there is no need to burn off ALL those calories in one super-intense exercise session. Your body does need to retain some calories to serve as a fuel to the normal functions of the heart and the lungs, so some high calorie foods are essential. So long, bellas! More Great Post on How to Gain Weight: 10 Best Weight Gaining Foods … Ultimate Dessert Guide - 50 Best Chocolate Desserts Top 15 High Calorie Recipes … 10 Worst Foods for Your Hips … Top 20 High Protein Foods … 10 Best Weight Gaining Foods … Top 15 High Calorie Recipes …