As Primmers says, you need to test and see what affects your BGs.
We all vary, sometimes some of us have some remaining insulin production, some of us have better glucose tolerance than others and so on.
Facts are, eating carbs will push your BGs up, so you need to see how much carbs you can eat and still keep your BGs within reasonable limits.
I try to keep mine as low as is reasonable, so 5 or 6 mmol before meals and no more than 8 two hours after but 7 is better.
Doing this keeps my HbA1c around 5%.
Your readings after pasta etc. are ok, since they do come down quite quickly, this probably indicates that you still have some insulin production.
You might try wholemeal pasta, it gives me a lower "spike" and sort of spreads the effect over a longer period. This is true of most whole grain foods. If I eat potato I try and eat lots of stuff like cabbage at the same time, it slows the absorption of the carbs down.
I wouldn't be happy with 10 or 11 after one hour of eating, say, Shreddies, remember that the "spikes" are important as well as they can cause the dreaded complications in time. I would be happier with 8 - 8.5 at one hour. Try reducing the quantity, try soy milk instead of cows, (Cows milk has more carbs) . 100 gms of Shreddies has 73 gms of carbs and 15 gms of sugar. Shredded Wheat has 69 gms of Carb but only 1 gm of sugar per 100 gms so Shredded Wheat should not produce such a rapid spike as Shreddies. Milk has about 12 gms of carbs per cup and soy milk has only 4gms per cup.
Hope it all helps, it is all about carbohydrates and how your body copes with the amounts and types of food you eat.
H