You're not eating enough right now and that could slow down your weight loss if that continues. It's important to eat the recommended amount of calories and fat for best results with alli. And, there's two great posts on each of those at the top of the dietitians message board. Take a look when you get a chance; it's great info.
Check out the Breakfast, Lunch and Dinner message boards for some good ideas (and recipes!) on each of those meals. And, you can use the Sample Menus for your level to get an idea of how to distribute calories and fat throughout the day. You can also use similar types and amount of foods in your menus.
On the day you mention, you could have the muffin with some peanut butter (for the fat), fruit and coffee. For a snack, FF yogurt and a few graham crackers and/or fruit. Lunch, tuna with LF mayo on whole grain break with lettuce and tomato, juice and roasted almonds.
Fruits and vegetables; whole grain breads are a good way to add volume to your meals with little or no fat. You can use regular or LF dressings on salads and nuts to bring up the fat when you need to.
I hope this helps. Please let me know if you need anything else.
Pat Baird, MA, RD, registered dietitian