Help meeting daily calorie requirements!

Ok, I gained a lot of weight over the last 1.5 years. I started road cycling last year for fun/weightloss. Problem is I never lost weight or inches....then during the off season (too cold to ride) I didn't do any exercise and really packed on some weight which is unusual for me. I am 38 and have never been over a size 6-8 right now I am in a size 14 which is drastic. Been to Dr. had blood work was mildly anemic. Got my iron levels back to normal blah blah blah. Started cycling again this spring. ZERO ENERGY No matter how much sleep the rides were just killing me to finish. Haven't been able to figure out what in the heck has been wrong with my energy levels despite sleeping good and exercising and still losing no inches or lbs. So this week downloaded myfitnesspal app to link up to Mapmyride app. Put in my food intake for the day I was thinking Ive been eating right, my calorie intake has been around 1300. I have been eating like this for a long time without ever adding up the calories. Not realizing how LOW calorie I was eating. Especially after my bike rides. I just always try to think low calorie and LEAN. For example this is a normal days worth of eating for me and some days if things get hectic it will be significantly less calories.....

Breakfast Pre Ride- Nature Valley Granola Bar 2 cups Coffee 430 cal
Lunch time Post Ride- 2 Egg Omlette and 1/2 cup 4% cottage cheese 260 cal
Snack: Cottage Cheeese 4% 1/2 cup, 3/4 cup bluberries(fresh), 1 cup Whole Milk 326 cal
Dinner: Home made low fat Turkey Enchaladas 326 cal

As you can see there is a major deficit. My ride alone that day I burned 921 calories. And had only consumed 1342 cal for the day........YIKES

So I set up the app and am trying to lose around 1lb a week so I am trying to stick to 1650 calories a day. Which isn't hard until I ride my bike and burn between 800-1000 calories. Which is too much of a calorie deficit and I cannot figure out what in the heck I am suppose to be eating to help fill up the 800+ calories I am burning on my workouts so I can get my body out of starvation mode and into fat burning muscle building mode. I don't want to overload on protein because I am worried my legs will bulk up too much because of the cycling and I don't want GIGANTIC quads!

Some advice would be great here. Yesterday I had managed to get to about 1550 calories then worked out after dinner burned 889 calories on a 17+mile bike ride and had a protein shake and an extra piece of broiled talapia and still was 710 calories short for my day. I am always tired I know its because I don't have enough fuel to run on. Where do I find that many HEALTHY calories to add during the day/post workout??? Not to mention I am not feeling very hungry even when I am eating with the exception of dinner and post ride. Most days I ride in the late evening so its a post dinner workout most of the time and I literally will have 800+ calories to replace when I am done. I am not giving up the biking I love it so much but I know my body is not able to continue to run on so little fuel.......advice welcome because I am unsure of how to add so many calories!! Thanks in advance!!