You had a nice afternoon.

Same corrections as Daniel and Emma gave -- I'll just mention that while "little" is correct English, it's much more typical to say "... we didn't spend much, fortunately." Note that "little" or "not much" means a small amount (poco) whereas "a little" means "some" (un po'). The use of the indefinite article has a similar effect in English and Italian.

I think we all want to know your mom's secret sauce recipe....

words

I went to my mother for lunch today. She cooked pasta with sauce. I and My wife and I went to city center to do shopping at in the afternoon but the stores were closed so we spent a little fortunately. We went to the bed early this evening because we were very tired.

I love pasta and sauce. What kind of sauce was it?

Words

I went to my mother's for lunch today. She cooked pasta with sauce. My wife and I went to the city center to do shopping in the afternoon, but the stores were closed and we spent little, fortunately. We went to bed early this evening because we were very tired.