At minimum if you are only having a small portion of cooked pasta (1 cup) , 1 biscuit as a snack, 2 slices of medium wholemeal bread, only the recommended portion size (matchbook size) of cheese, you're looking at 1500 calories with the diet you've listed. The breakdown is that it's roughly 40% fat, 40% carbs, 20% protein.
In comparison, my day yesterday was 55% protein, 16% fat, 29% carbs and 1300 calories.
There are lots of high protein vegetarian foods www.bbcgoodfood.com/health/special-diets/best-sources-protein-vegetarians
The problem with pasta and bread is that it has a high Glycemic Index score so it causes a large rise in your blood sugar, then a quick drop, like with sweets when we describe the 'sugar crash'. When you crash you get hungry because your body is trying to find a nice even level and feels like it's gone low.
www.everydayhealth.com/type-2-diabetes/living-with/foods-that-spike-blood-sugar/
Carbs that release sugars in a slower and more even pattern are better, but low GI carbs are things like rye bread (really dark, heavily seeded) rather than wholemeal which at best would be medium GI.
Have you sought any kind of medical advice at all? If you've been overweight for a while and have had a high sugar diet for a while, it's not outside the realms of possibility that you would have some kind of metabolic issue like PCOS, pre-diabetes or diabetes. Getting a blood test to check HbA1C and cholesterol wouldn't be a bad idea.
Currently from what I see your diet is fighting with the Mounjaro, you are not giving it the ability to do what it should do. The MJ is trying to slow your digestion and balance your sugar levels, you are making that difficult by eating a lot of sugar.