You may have heard people comment that lettuce is just empty calories. This is just not true. While iceberg lettuce is not a nutritional powerhouse, other salad greens are nutritional champions.

As a general rule, the darker the leaves, the more nutritious the salad green. Just as an example, romaine and watercress have seven times as much beta-carotene, two to four times as much calcium and twice the amount of potassium as iceberg lettuce.

By simply choosing a variety of salad greens you use in your salads, you can enhance the nutritional content and enjoy new tastes and textures. Give it try!

At the market: You want to buy salad greens that have been picked recently. A great place to buy salad greens is a farmer's market or farm stand. Look for clean, fresh looking cut ends. You don't want anything that looks rusty, dried-out or wilted. Crisp, bright looking leaves are good too. Firm or solid feeling heads of lettuce are best.

Storage at home: For wilt-free lettuce with maximum crunch thoroughly wash and dry your lettuce as soon you bring it home. Roll the leaves in several layers of paper towels or a clean kitchen towel, seal in a plastic bag, and store in the "crisper" of your refrigerator for up to 1 week. Iceberg lettuce will keep up to 2 weeks.

Here are some simple, delicious salad green ideas for the whole family:

Lettuce Cups: Both Boston and Bibb lettuce make perfect "cups" for grilled fish, shrimp or tofu. Serve with diced vegetables and your favorite salad dressing to drizzle on top. These lettuce cups also make "green" taco shells, just fill them up with all your favorite taco fix-ens -- muy delicioso!

Tossed Salads: Iceberg lettuce, tomatoes and onions are the traditional ingredients for a tossed salad. There are many more exciting options. Starting with a nice variety of salad greens in your bowl, add a few mix-in items and you'll transform the tired tossed salad into a great side dish.

Here are some of our favorite tossed salad mix-in combinations:

• Cooked corn, black beans, diced red peppers, and crumbled tortilla chips
• Mandarin oranges, diced green onions, and blanched almond pieces
• Diced pears, chopped dates, crumbled blue cheese and chopped walnuts
• Green apple slices, dried cranberries, and cheddar cheese cubes
• Mango slices, grilled shitake mushrooms, and sesame seeds

Dressing Up Your Tossed Salad: A great tossed salad is nothing without a delicious dressing. Homemade salad dressings are simple to make, taste better, and are much healthier than the store- bought bottles.

To make homemade salad dressing, simply start with a container that has a tight-fitting lid. Add the dressing ingredients from one of the recipes below to the container, cover it and give it a good shake. It's that easy!

Dressing Recipes:

• Classic French Dijon Dressing
• Creamy Dil Dressing
• Sweet Balsamic Dressing
• Sesame Dressing
• Lemon Garlic Dressing

Recipe: Fattoush Salad This is a refreshing Middle Eastern chopped salad with a lemony zip. Chop or dice all of the ingredients into small pieces, so each forkful contains a complete variety of delicious flavors.

Recipe: Bok Choy Slaw This cabbage salad is a staple in Asia and when you make this Asian-inspired cole slaw, you will know why it's a huge favorite.

About the author: Cheryl Tallman is the co-founder of Fresh Baby, creators of the award-winning So Easy Baby Food Kit. Visit Cheryl online at www.FreshBaby.com for more delicious tips.