#### Answer

In an Oven Roasted Chicken sandwich with mustard and olive oil, the total number of calories is $370$, and the total number of grams of fat is $10$.

#### Work Step by Step

An Oven Roasted Chicken sandwich has $320$ calories and $5$ grams of fat.
2 tsp. of mustard have $5$ calories and $0$ grams of fat.
1 tsp. of olive oil has $45$ calories and $5$ grams of fat.
$320 + 5 + 45 = 370$
$5+0+5=10$
In an Oven Roasted Chicken sandwich with mustard and olive oil, the total number of calories is $370$, and the total number of grams of fat is $10$.