Hello!
Sensory details are details that appeal to a person's sense of smell, taste, touch, hearing, or sight.
For this sentence, we could include sensory details by writing "Mom cooked a delicious dinner that smelled wonderful last night."
The word "delicious" allows the reader to imagine how the food tastes. The words "smelled wonderful" appeals to the reader's sense of smell, and he can imagine how the food smelled.
I hope this helps you! Have an awesome day!