To find out how much change Catalina would get back, first, we need to calculate the total amount she spent on crackers and cheese:
\[ \text{Total cost} = \text{Cost of crackers} + \text{Cost of cheese} \]
\[ \text{Total cost} = 2.41 + 1.86 = 4.27 \]
Now, we subtract the total cost from the amount she paid with:
\[ \text{Change} = \text{Amount paid} - \text{Total cost} \]
\[ \text{Change} = 10.00 - 4.27 = 5.73 \]
Thus, the amount of change Catalina would get back is:
\[ \text{Change} = $5.73 \]
So, the answer is $5.73.