In Google sheets is there a simple method to create a list based off row and column cells

Question

If I have a google sheet with the following rows and columns

	Red	Green	Yellow
Apple
Grape
Pear

Is there a formula to create the following list.

Apple	Red
Apple	Green
Apple	Yellow
Grape	Red
Grape	Green
Grape	Yellow
Pear	Red
Pear	Green
Pear	Yellow

Answer 1

You can do this with this formula:

=INDEX(FLATTEN(A2:A4&" "&B1:D1))

References:
Generate all possible combinations for Columns(cross join or Cartesian product)
Create a combined list from two separate lists