Will one bowl of spaghetti make me gain weight?

I was diagnosed with anorexia, and am currently 103lbs. My mom is trying to get me to gain weight, and bought whole grain pasta to make spaghetti tonight. Today I ve had a green juice with 1 cup of spinach, 1 kale leaf, 1 cup of strawberries, a banana, and chia seeds. Half a cup of vanilla greek yogurt. An apple. A handful of almonds. A salad with romaine lettuce, fat-free dressing, cucumber, and avocado. That's more than I've eaten in a while. Will a bowl of spaghetti make me gain anything? I don t want to gain fat/cellulite, only muscle mass and since I did a pretty hard workout yesterday, I need to rest, so I figured I would ask. Thank you!
Updates
+1 y
Would taking a 20 minute walk burn it off?
Will one bowl of spaghetti make me gain weight?
Post Opinion